/home/travis/build/icyphy/ptII/bin/ant: Running /home/travis/build/icyphy/ptII/ant/bin/ant build test.core6.xml
Buildfile: /home/travis/build/icyphy/ptII/build.xml

build-message:
     [echo] Use ant -p to see other targets. JAVA_HOME=/usr/local/lib/jvm/openjdk11
     [echo] tools.jar is necessary for compilation of doc/doclets/.
     [echo] If compilation fails, try setting JAVA_HOME to the location of the JDK.
     [echo] For example:
     [echo]   [bldmastr@sisyphus ptII]$ which java
     [echo]   /usr/bin/java
     [echo]   [bldmastr@sisyphus ptII]$ ls -l /usr/bin/java
     [echo]   lrwxrwxrwx 1 root root 26 Jul 31 10:12 /usr/bin/java -> /usr/java/default/bin/java
     [echo]   [bldmastr@sisyphus ptII]$ export JAVA_HOME=/usr/java/default
     [echo]     

-build-subprojects-empty:

build-subprojects:

-check-node:

-check-node-works:
     [exec] /home/travis/build/icyphy/ptII/bin/node: Running /home/travis/.nvm/versions/node/v7.10.1/bin/node --version
     [exec] v7.10.1

-check-npm:

-check-npm-works:
     [exec] /home/travis/build/icyphy/ptII/bin/npm: Running /home/travis/.nvm/versions/node/v7.10.1/bin/npm --version
     [exec] /home/travis/build/icyphy/ptII/bin/node: Running /home/travis/.nvm/versions/node/v7.10.1/bin/node /home/travis/.nvm/versions/node/v7.10.1/bin/npm --version
     [exec] 4.2.0

-check-if-npmjs-org-is-up:
     [echo] Check to see if https://www.npmjs.org is up.

-jsdoc-no-network-message:

-check-jsdoc:

jsdoc-install:
     [exec] /home/travis/build/icyphy/ptII/bin/npm: Running /home/travis/.nvm/versions/node/v7.10.1/bin/npm install @terraswarm/jsdoc
     [exec] /home/travis/build/icyphy/ptII/bin/node: Running /home/travis/.nvm/versions/node/v7.10.1/bin/node /home/travis/.nvm/versions/node/v7.10.1/bin/npm install @terraswarm/jsdoc
     [exec] npm WARN lifecycle The node binary used for scripts is /home/travis/build/icyphy/ptII/bin/node but npm is using /home/travis/.nvm/versions/node/v7.10.1/bin/node itself. Use the `--scripts-prepend-node-path` option to include the path for the node binary npm was executed with.
     [exec] /home/travis/build/icyphy/ptII
     [exec] └─┬ @terraswarm/jsdoc@3.5.1-dev 
     [exec]   ├── bluebird@3.4.7 
     [exec]   ├─┬ catharsis@0.8.11 
     [exec]   │ └── lodash@4.17.21 
     [exec]   ├── escape-string-regexp@1.0.5 
     [exec]   ├─┬ espree@3.1.7 
     [exec]   │ ├── acorn@3.3.0 
     [exec]   │ └── acorn-jsx@3.0.1 
     [exec]   ├── js2xmlparser@1.0.0 
     [exec]   ├─┬ klaw@1.3.1 
     [exec]   │ └── graceful-fs@4.2.10 
     [exec]   ├── marked@0.3.19 
     [exec]   ├─┬ mkdirp@0.5.6 
     [exec]   │ └── minimist@1.2.6 
     [exec]   ├── requizzle@0.2.3 
     [exec]   ├── strip-json-comments@2.0.1 
     [exec]   ├── taffydb@2.6.2 
     [exec]   └── underscore@1.8.3 
     [exec] 
     [exec] npm WARN enoent ENOENT: no such file or directory, open '/home/travis/build/icyphy/ptII/package.json'
     [exec] npm WARN ptII No description
     [exec] npm WARN ptII No repository field.
     [exec] npm WARN ptII No README data
     [exec] npm WARN ptII No license field.

jsdoc-update:
     [exec] /home/travis/build/icyphy/ptII/bin/npm: Running /home/travis/.nvm/versions/node/v7.10.1/bin/npm update @terraswarm/jsdoc
     [exec] /home/travis/build/icyphy/ptII/bin/node: Running /home/travis/.nvm/versions/node/v7.10.1/bin/node /home/travis/.nvm/versions/node/v7.10.1/bin/npm update @terraswarm/jsdoc

-ptdoc-no-node:

-ptdoc-no-npm:

ptdoc:
     [echo] 
     [echo]       If the ptdoc target fails, then try running:
     [echo]           ant build-project build-bin
     [echo]     

-check-node:

-check-node-works:
     [exec] /home/travis/build/icyphy/ptII/bin/node: Running /home/travis/.nvm/versions/node/v7.10.1/bin/node --version
     [exec] v7.10.1

-check-npm:

-check-npm-works:
     [exec] /home/travis/build/icyphy/ptII/bin/npm: Running /home/travis/.nvm/versions/node/v7.10.1/bin/npm --version
     [exec] /home/travis/build/icyphy/ptII/bin/node: Running /home/travis/.nvm/versions/node/v7.10.1/bin/node /home/travis/.nvm/versions/node/v7.10.1/bin/npm --version
     [exec] 4.2.0

-check-if-npmjs-org-is-up:
     [echo] Check to see if https://www.npmjs.org is up or $TRAVIS is set.

-jsdoc-no-network-message:

-check-jsdoc:
     [echo] To stop CapeCode from invoking jsdoc and svn, set the PT_NO_NET environment variable.  
     [echo]     Under BASH:
     [echo]         export PT_NO_NET=true
     [echo]     If ptdoc fails, and you are building from $PTII, try:
     [echo]         ant build-project build-bin
     [echo]     

jsdoc-install:
     [echo] npm.executable: npm
    [mkdir] Created dir: /home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/node_modules
     [exec] /home/travis/build/icyphy/ptII/bin/npm: Running /home/travis/.nvm/versions/node/v7.10.1/bin/npm install @terraswarm/jsdoc
     [exec] /home/travis/build/icyphy/ptII/bin/node: Running /home/travis/.nvm/versions/node/v7.10.1/bin/node /home/travis/.nvm/versions/node/v7.10.1/bin/npm install @terraswarm/jsdoc
     [exec] npm WARN lifecycle The node binary used for scripts is /home/travis/build/icyphy/ptII/bin/node but npm is using /home/travis/.nvm/versions/node/v7.10.1/bin/node itself. Use the `--scripts-prepend-node-path` option to include the path for the node binary npm was executed with.
     [exec] /home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors
     [exec] └─┬ @terraswarm/jsdoc@3.5.1-dev 
     [exec]   ├── bluebird@3.4.7 
     [exec]   ├─┬ catharsis@0.8.11 
     [exec]   │ └── lodash@4.17.21 
     [exec]   ├── escape-string-regexp@1.0.5 
     [exec]   ├─┬ espree@3.1.7 
     [exec]   │ ├── acorn@3.3.0 
     [exec]   │ └── acorn-jsx@3.0.1 
     [exec]   ├── js2xmlparser@1.0.0 
     [exec]   ├─┬ klaw@1.3.1 
     [exec]   │ └── graceful-fs@4.2.10 
     [exec]   ├── marked@0.3.19 
     [exec]   ├─┬ mkdirp@0.5.6 
     [exec]   │ └── minimist@1.2.6 
     [exec]   ├── requizzle@0.2.3 
     [exec]   ├── strip-json-comments@2.0.1 
     [exec]   ├── taffydb@2.6.2 
     [exec]   └── underscore@1.8.3 
     [exec] 
     [exec] npm WARN enoent ENOENT: no such file or directory, open '/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/package.json'
     [exec] npm WARN accessors No description
     [exec] npm WARN accessors No repository field.
     [exec] npm WARN accessors No README data
     [exec] npm WARN accessors No license field.

jsdoc-update:
     [exec] /home/travis/build/icyphy/ptII/bin/npm: Running /home/travis/.nvm/versions/node/v7.10.1/bin/npm update @terraswarm/jsdoc
     [exec] /home/travis/build/icyphy/ptII/bin/node: Running /home/travis/.nvm/versions/node/v7.10.1/bin/node /home/travis/.nvm/versions/node/v7.10.1/bin/npm update @terraswarm/jsdoc

-ptdoc-no-node-message:

-ptdoc-no-npm-message:

-check-jsdoc-again:

-jsdoc-command-message:

ptdoc:
     [echo] Invoke /home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/../node_modules/@terraswarm/jsdoc/jsdoc.js to read *.js files and generate *PtDoc.xml files suitable for Ptolemy.
     [echo]     See https://chess.eecs.berkeley.edu/ptexternal/wiki/Main/JSDocSystems
     [echo]     See jsdoc/jsdoc.json
     [echo]     See jsdoc/plugins/accessorJSDocTags.js
     [echo]     See jsdoc/templates/ptdoc/publish.js
     [echo] 
     [echo]     If the ptdoc target fails, the there is likely a problem with node or npm.  It is possible
     [echo]     to use CapeCode even if the ptdoc target fails.
     [echo]     
     [echo]     If you are building from $PTII, try:
     [echo]         ant build-project build-bin
     [echo] 
     [echo]     
     [exec] /home/travis/build/icyphy/ptII/bin/node: Running /home/travis/.nvm/versions/node/v7.10.1/bin/node /home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/../node_modules/@terraswarm/jsdoc/jsdoc.js --configure jsdoc/jsdoc.json --recurse --template jsdoc/templates/ptdoc --verbose .
     [exec] Generating output files...
     [exec] Finished running in 13.13 seconds.

build-project:
     [echo] ptII: /home/travis/build/icyphy/ptII/build.xml
    [javac] Compiling 4252 source files to /home/travis/build/icyphy/ptII
    [javac] /home/travis/build/icyphy/ptII/ptolemy/util/StringUtilities.java:48: warning: Unsafe is internal proprietary API and may be removed in a future release
    [javac] import sun.misc.Unsafe;
    [javac]                ^
    [javac] /home/travis/build/icyphy/ptII/ptolemy/util/StringUtilities.java:118: warning: Unsafe is internal proprietary API and may be removed in a future release
    [javac]             Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
    [javac]                               ^
    [javac] /home/travis/build/icyphy/ptII/ptolemy/util/StringUtilities.java:120: warning: Unsafe is internal proprietary API and may be removed in a future release
    [javac]             Unsafe unsafe = (Unsafe) theUnsafe.get(null);
    [javac]             ^
    [javac] /home/travis/build/icyphy/ptII/ptolemy/util/StringUtilities.java:120: warning: Unsafe is internal proprietary API and may be removed in a future release
    [javac]             Unsafe unsafe = (Unsafe) theUnsafe.get(null);
    [javac]                              ^
    [javac] Note: Some input files use or override a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 4 warnings

-check-ptII-mk-file:

-check-bin-vergil:

-check-make-bin-vergil:

build-bin-not:

build-not-bin-vergil:
     [echo] 
     [echo] 	$PTII/bin/vergil does not exist, perhaps (cd $PTII/bin; make) has not been run?
     [echo] 	This can happen if the make binary cannot be found in the path or if $PTII/mk/ptII.mk
     [echo] 	is not present.
     [echo] 	Skipping running make in $PTII/bin, which creates scripts like $PTII/bin/vergil.
     [echo] 	This is only an issue if you want to invoke "$PTII/bin/vergil" instead of "ant vergil".
     [echo] 	However, $PTII/bin does include other scripts that may be of use.
     [echo]       

build-bin:
     [exec] for file in .momllib-util .nc2moml-util .ncapp2moml-util capecode convertToLazy copernicus decompile emachine giottoc histogram homer jode mescal moml obfuscate ptcg ptcodegen ptexecute ptjacl ptjaclapp ptplot ptstartjini ptolemy ptweb pxgraph soot tinicomm tinic tiniconverter startjini.gui vergil; do \
     [exec] 	echo "$file"; \
     [exec] 	rm -f "$file"; \
     [exec] 	ln -s ptinvoke "$file"; \
     [exec] 	chmod a+x "$file"; \
     [exec] done
     [exec] .momllib-util
     [exec] .nc2moml-util
     [exec] .ncapp2moml-util
     [exec] capecode
     [exec] convertToLazy
     [exec] copernicus
     [exec] decompile
     [exec] emachine
     [exec] giottoc
     [exec] histogram
     [exec] homer
     [exec] jode
     [exec] mescal
     [exec] moml
     [exec] obfuscate
     [exec] ptcg
     [exec] ptcodegen
     [exec] ptexecute
     [exec] ptjacl
     [exec] ptjaclapp
     [exec] ptplot
     [exec] ptstartjini
     [exec] ptolemy
     [exec] ptweb
     [exec] pxgraph
     [exec] soot
     [exec] tinicomm
     [exec] tinic
     [exec] tiniconverter
     [exec] startjini.gui
     [exec] vergil
     [exec] rm -f makebat
     [exec] ln -s ptinvoke makebat
     [exec] rm -f ".momllib-util.bat"
     [exec] ./makebat -q "`basename .momllib-util.bat .bat`"
     [exec] rm -f ".nc2moml-util.bat"
     [exec] ./makebat -q "`basename .nc2moml-util.bat .bat`"
     [exec] rm -f ".ncapp2moml-util.bat"
     [exec] ./makebat -q "`basename .ncapp2moml-util.bat .bat`"
     [exec] rm -f "capecode.bat"
     [exec] ./makebat -q "`basename capecode.bat .bat`"
     [exec] rm -f "convertToLazy.bat"
     [exec] ./makebat -q "`basename convertToLazy.bat .bat`"
     [exec] rm -f "copernicus.bat"
     [exec] ./makebat -q "`basename copernicus.bat .bat`"
     [exec] rm -f "decompile.bat"
     [exec] ./makebat -q "`basename decompile.bat .bat`"
     [exec] rm -f "emachine.bat"
     [exec] ./makebat -q "`basename emachine.bat .bat`"
     [exec] rm -f "giottoc.bat"
     [exec] ./makebat -q "`basename giottoc.bat .bat`"
     [exec] rm -f "histogram.bat"
     [exec] ./makebat -q "`basename histogram.bat .bat`"
     [exec] rm -f "homer.bat"
     [exec] ./makebat -q "`basename homer.bat .bat`"
     [exec] rm -f "jode.bat"
     [exec] ./makebat -q "`basename jode.bat .bat`"
     [exec] rm -f "mescal.bat"
     [exec] ./makebat -q "`basename mescal.bat .bat`"
     [exec] LD_LIBRARY_PATH = /home/travis/build/icyphy/ptII/mescal/lib:/home/travis/build/icyphy/ptII/mescal/bin:/usr/local/lib:/home/travis/pthla/certi-tools/lib:/home/travis/pthla/certi-tools/lib:/usr/lib/jni:/usr/local/share/OpenCV/java/:/usr/share/OpenCV/java:
     [exec] rm -f "moml.bat"
     [exec] ./makebat -q "`basename moml.bat .bat`"
     [exec] rm -f "obfuscate.bat"
     [exec] ./makebat -q "`basename obfuscate.bat .bat`"
     [exec] rm -f "ptcg.bat"
     [exec] ./makebat -q "`basename ptcg.bat .bat`"
     [exec] rm -f "ptcodegen.bat"
     [exec] ./makebat -q "`basename ptcodegen.bat .bat`"
     [exec] rm -f "ptexecute.bat"
     [exec] ./makebat -q "`basename ptexecute.bat .bat`"
     [exec] rm -f "ptjacl.bat"
     [exec] ./makebat -q "`basename ptjacl.bat .bat`"
     [exec] rm -f "ptjaclapp.bat"
     [exec] ./makebat -q "`basename ptjaclapp.bat .bat`"
     [exec] rm -f "ptplot.bat"
     [exec] ./makebat -q "`basename ptplot.bat .bat`"
     [exec] rm -f "ptstartjini.bat"
     [exec] ./makebat -q "`basename ptstartjini.bat .bat`"
     [exec] rm -f "ptolemy.bat"
     [exec] ./makebat -q "`basename ptolemy.bat .bat`"
     [exec] rm -f "ptweb.bat"
     [exec] ./makebat -q "`basename ptweb.bat .bat`"
     [exec] rm -f "pxgraph.bat"
     [exec] ./makebat -q "`basename pxgraph.bat .bat`"
     [exec] rm -f "soot.bat"
     [exec] ./makebat -q "`basename soot.bat .bat`"
     [exec] rm -f "tinicomm.bat"
     [exec] ./makebat -q "`basename tinicomm.bat .bat`"
     [exec] rm -f "tinic.bat"
     [exec] ./makebat -q "`basename tinic.bat .bat`"
     [exec] rm -f "tiniconverter.bat"
     [exec] ./makebat -q "`basename tiniconverter.bat .bat`"
     [exec] rm -f "startjini.gui.bat"
     [exec] ./makebat -q "`basename startjini.gui.bat .bat`"
     [exec] rm -f "vergil.bat"
     [exec] ./makebat -q "`basename vergil.bat .bat`"
     [exec] rm -f makeapp
     [exec] ln -s ptinvoke makeapp
     [exec] chmod a+x ptinvoke makeapp
     [exec] ./makeapp CapeCode.app CAPECODE -capecode
     [exec] ./makeapp: /home/travis/build/icyphy/ptII/vendors/universalJavaApplicationStub/src/universalJavaApplicationStub does not exist, creating it from GitHub.
     [exec] Cloning into 'universalJavaApplicationStub'...
     [exec] Updating universalJavaApplicationStub from /home/travis/build/icyphy/ptII/vendors/universalJavaApplicationStub/src/universalJavaApplicationStub
     [exec] Unrecognized option: -d32
     [exec] Error: Could not create the Java Virtual Machine.
     [exec] Error: A fatal exception has occurred. Program will exit.
     [exec] configure: WARNING: Running java -d32 -version failed,
     [exec]     and ./bin/java does not exist.
     [exec]     Perhaps you need to install a separate 32-bit JVM
     [exec]     or rerun configure with --with-java32?
     [exec]     The 32-bit JVM is only needed for certain 32-bit FMI tests.
     [exec]     In general, under a 64-bit JVM, FMI will work fine without a 32-bit JVM.
     [exec] configure: WARNING: Cannot find '/usr/local/lib/jvm/openjdk11/bin/javaws'.
     [exec]     or '/Commands/javaws', looking in the path.
     [exec]     This is only a problem when testing the Java Webstart (JNLP) files.
     [exec] configure: WARNING: The javaws command "" is not executable or not found.
     [exec]     This is only a problem when testing the Java Webstart (JNLP) files.
     [exec] configure: WARNING: Failed to find /usr/local/include/boost/numeric/odeint.hpp
     [exec]     This is only a problem if you want to rebuild the Functional
     [exec]     Mock-up Interface ++ C files in actor/lib/fmi/fmipp.
     [exec]     Most users can use the shared libraries in /home/travis/build/icyphy/ptII/lib or /home/travis/build/icyphy/ptII/bin.
     [exec] configure: WARNING: Failed to find Checkstyle in /home/travis/build/icyphy/ptII/vendors/checkstyle-6.2
     [exec]     Checkstyle is only necessary for code cleaning.
     [exec]     Checkstyle is LGPL'd, so while it could be in the ptII repo, we don't add it.
     [exec]     Checkstyle may be downloaded from http://checkstyle.sourceforge.net/
     [exec] configure: WARNING: Did not find /home/travis/build/icyphy/ptII/vendors/misc/colt/colt.jar,
     [exec]     using /home/travis/build/icyphy/ptII/lib/ptcolt.jar
     [exec] CORBATest.java:28: error: package org.omg.CORBA does not exist
     [exec] import org.omg.CORBA.Object;
     [exec]                     ^
     [exec] CORBATest.java:46: error: package org.omg.CORBA does not exist
     [exec]     public static org.omg.CORBA.Object corbaObject = null;
     [exec]                                ^
     [exec] 2 errors
     [exec] configure: WARNING: '"/usr/local/lib/jvm/openjdk11/bin/javac" CORBATest.java' failed.
     [exec]     perhaps you are running an JDK 1.9?
     [exec]     You will not be able to run the ptolemy.actor.corba actors,
     [exec]     which is probably not a problem.
     [exec] configure: WARNING: Failed to find Cobertura in /home/travis/build/icyphy/ptII/vendors/corbertura-2.0.3
     [exec]     Cobertura is only necessary to for code coverage.
     [exec]     Cobertura is GPL'd, so we don't check it in to the ptII repository.
     [exec]     Cobertura may be downloaded from http://cobertura.github.io/cobertura/
     [exec] configure: WARNING: Failed to find CUnit in /usr/local or
     [exec]     /home/travis/build/icyphy/ptII/vendors/CUnit.
     [exec]     CUnit is only necessary to test the C templates of the code generation facility
     [exec] configure: WARNING: Could not find tools.jar, checking for classes.jar
     [exec] configure: WARNING: Could not find tools.jar or classes.jar in
     [exec]     PTJAVA_HOME = /usr/local/lib/jvm/openjdk11
     [exec]     Usually, tools.jar is in PTJAVA_HOME/../lib/tools.jar
     [exec]     or classes.jar is in PTJAVA_HOME/../Classes/classes.jar
     [exec]     Since tools.jar and classes.jar cannot be found,
     [exec]     we will not use doclets from ptII/doc/doclets, which
     [exec]     means that the actor documentation index system will not work.
     [exec] configure: WARNING: Failed to find /home/travis/build/icyphy/ptII/vendors/mbed/gcc-arm/bin/arm-none-eabi-gcc
     [exec]     so the Mbed CG facility will not be run.
     [exec] JAITest.java:32: error: package com.sun.image.codec.jpeg does not exist
     [exec] import com.sun.image.codec.jpeg.JPEGCodec;
     [exec]                                ^
     [exec] JAITest.java:28: error: package javax.media.jai does not exist
     [exec] import javax.media.jai.*;
     [exec] ^
     [exec] 2 errors
     [exec] configure: WARNING: JAI not found in the default classpath
     [exec] JAITest.java:32: error: package com.sun.image.codec.jpeg does not exist
     [exec] import com.sun.image.codec.jpeg.JPEGCodec;
     [exec]                                ^
     [exec] 1 error
     [exec] configure: WARNING: JAI not found in /home/travis/build/icyphy/ptII/vendors/jai-1_1_3
     [exec] configure: WARNING: '"/usr/local/lib/jvm/openjdk11/bin/javac" JAITest.java' failed and JAI jars were not found
     [exec]     in /home/travis/build/icyphy/ptII/vendors
     [exec]     perhaps the Java Advanced Imaging API is not installed?
     [exec] 
     [exec]     Note that JAI does not work in Java 9 and later because Java 9 removed
     [exec]     internal classes used by JAI.
     [exec]     See https://wiki.eecs.berkeley.edu/ptexternal/Main/JAI
     [exec] 
     [exec]     You need not download Jai unless you plan on using the video
     [exec]     actors in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jai
     [exec]     The JAI API can be downloaded from
     [exec]     http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-java-client-419417.html
     [exec] configure: WARNING: Failed to find /usr/local/jmodelica/include/jmi.h
     [exec]     which is part of JModelica.
     [exec]     Ptolemy optionally includes one or more FMUs that use JModelica.
     [exec]     To install JModelica, see https://svn.jmodelica.org/trunk/INSTALL
     [exec] JavaFXTest.java:28: error: package javafx.embed.swing does not exist
     [exec] import javafx.embed.swing.JFXPanel;
     [exec]                          ^
     [exec] JavaFXTest.java:29: error: package javafx.scene.media does not exist
     [exec] import javafx.scene.media.Media;
     [exec]                          ^
     [exec] JavaFXTest.java:49: error: cannot find symbol
     [exec]     public static JFXPanel fxPanel = null;
     [exec]                   ^
     [exec]   symbol:   class JFXPanel
     [exec]   location: class JavaFXTest
     [exec] 3 errors
     [exec] configure: WARNING: JavaFX not yet found
     [exec] JMFTest.java:28: error: package javax.media does not exist
     [exec] import javax.media.CaptureDeviceInfo;
     [exec]                   ^
     [exec] 1 error
     [exec] configure: WARNING: JMF not found in the default classpath, will check elsewhere next.
     [exec] Exception in thread "main" java.lang.RuntimeException: Could not load opencv_java320.
     [exec]     java.library.path = /home/travis/build/icyphy/ptII/lib:/home/travis/pthla/certi-tools/lib:/home/travis/pthla/certi-tools/lib:/usr/lib/jni:/usr/local/share/OpenCV/java/:/usr/share/OpenCV/java::/usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
     [exec] 	at OpenCVTest.main(OpenCVTest.java:79)
     [exec] Caused by: java.lang.UnsatisfiedLinkError: no opencv_java320 in java.library.path: [/home/travis/build/icyphy/ptII/lib, /home/travis/pthla/certi-tools/lib, /home/travis/pthla/certi-tools/lib, /usr/lib/jni, /usr/local/share/OpenCV/java/, /usr/share/OpenCV/java, ., /usr/java/packages/lib, /usr/lib64, /lib64, /lib, /usr/lib]
     [exec] 	at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2660)
     [exec] 	at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:829)
     [exec] 	at java.base/java.lang.System.loadLibrary(System.java:1867)
     [exec] 	at OpenCVTest.main(OpenCVTest.java:52)
     [exec] configure: WARNING: Failed to run OpenCV test program in /home/travis/build/icyphy/ptII/config with
     [exec]     /usr/local/lib/jvm/openjdk11/bin/java -classpath /home/travis/build/icyphy/ptII/lib/opencv-320.jar:. OpenCVTest
     [exec]     so we will try other jars.
     [exec] Exception in thread "main" java.lang.RuntimeException: Could not load opencv_java341.
     [exec]     java.library.path = /home/travis/build/icyphy/ptII/lib:/home/travis/pthla/certi-tools/lib:/home/travis/pthla/certi-tools/lib:/usr/lib/jni:/usr/local/share/OpenCV/java/:/usr/share/OpenCV/java::/usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
     [exec] 	at OpenCVTest.main(OpenCVTest.java:79)
     [exec] Caused by: java.lang.UnsatisfiedLinkError: /usr/lib/jni/libopencv_java341.so: libavcodec.so.57: cannot open shared object file: No such file or directory
     [exec] 	at java.base/java.lang.ClassLoader$NativeLibrary.load0(Native Method)
     [exec] 	at java.base/java.lang.ClassLoader$NativeLibrary.load(ClassLoader.java:2430)
     [exec] 	at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(ClassLoader.java:2487)
     [exec] 	at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2684)
     [exec] 	at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2649)
     [exec] 	at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:829)
     [exec] 	at java.base/java.lang.System.loadLibrary(System.java:1867)
     [exec] 	at OpenCVTest.main(OpenCVTest.java:52)
     [exec] Exception in thread "main" java.lang.RuntimeException: Could not load opencv_java341.
     [exec]     java.library.path = /home/travis/build/icyphy/ptII/lib:/home/travis/pthla/certi-tools/lib:/home/travis/pthla/certi-tools/lib:/usr/lib/jni:/usr/local/share/OpenCV/java/:/usr/share/OpenCV/java::/usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
     [exec] 	at OpenCVTest.main(OpenCVTest.java:79)
     [exec] Caused by: java.lang.UnsatisfiedLinkError: /usr/lib/jni/libopencv_java341.so: libavcodec.so.57: cannot open shared object file: No such file or directory
     [exec] 	at java.base/java.lang.ClassLoader$NativeLibrary.load0(Native Method)
     [exec] 	at java.base/java.lang.ClassLoader$NativeLibrary.load(ClassLoader.java:2430)
     [exec] 	at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(ClassLoader.java:2487)
     [exec] 	at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2684)
     [exec] 	at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2649)
     [exec] 	at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:829)
     [exec] 	at java.base/java.lang.System.loadLibrary(System.java:1867)
     [exec] 	at OpenCVTest.main(OpenCVTest.java:52)
     [exec] Exception in thread "main" java.lang.RuntimeException: Could not load opencv_java341.
     [exec]     java.library.path = /home/travis/build/icyphy/ptII/lib:/home/travis/pthla/certi-tools/lib:/home/travis/pthla/certi-tools/lib:/usr/lib/jni:/usr/local/share/OpenCV/java/:/usr/share/OpenCV/java::/usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
     [exec] 	at OpenCVTest.main(OpenCVTest.java:79)
     [exec] Caused by: java.lang.UnsatisfiedLinkError: /usr/lib/jni/libopencv_java341.so: libavcodec.so.57: cannot open shared object file: No such file or directory
     [exec] 	at java.base/java.lang.ClassLoader$NativeLibrary.load0(Native Method)
     [exec] 	at java.base/java.lang.ClassLoader$NativeLibrary.load(ClassLoader.java:2430)
     [exec] 	at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(ClassLoader.java:2487)
     [exec] 	at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2684)
     [exec] 	at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2649)
     [exec] 	at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:829)
     [exec] 	at java.base/java.lang.System.loadLibrary(System.java:1867)
     [exec] 	at OpenCVTest.main(OpenCVTest.java:52)
     [exec] configure: WARNING: Checked     /home/travis/build/icyphy/ptII/vendors/opencv/share/OpenCV/java/opencv-341.jar /home/travis/build/icyphy/ptII/lib/opencv-341.jar /usr/share/OpenCV/java/opencv-341.jar,
     [exec]     but the OpenCV test program failed to compile or run.
     [exec] 
     [exec]     Under Linux, try:
     [exec] 
     [exec]     export LD_LIBRARY_PATH=${PTII}/vendors/opencv/lib:${PTII}/vendors/opencv/share/OpenCV/java:${LD_LIBRARY_PATH}
     [exec]     ./configure
     [exec]     
     [exec] configure: WARNING: Either we could not find
     [exec]     org.opencv.core.Core or else it was already in the JRE.
     [exec]     Searching for OpenCV.jar returned:
     [exec]       
     [exec]     If the class cannot be found, then Eclipse might not be able to find
     [exec]     the OpenCV files.
     [exec] 
     [exec]     This is only a problem if you are using Eclipse.
     [exec]     If the class was in the JRE, then Eclipse should compile the OpenCV files
     [exec]     without problems.
     [exec]     For details, see /home/travis/build/icyphy/ptII/org/ptolemy/opencv/package.html
     [exec] configure: WARNING: OpenCV was not found, so org/ptolemy/opencv will not be compiled.
     [exec]    Try running /home/travis/build/icyphy/ptII/org/ptolemy/opencv/travis_build_opencv.sh; ./configure
     [exec]    
     [exec] configure: WARNING: Could not find directory
     [exec]     '/home/travis/build/icyphy/ptII/vendors/sun/javacc-5.0'
     [exec]     so we search for the jjtree command.
     [exec] configure: WARNING: Failed to find jjtree
     [exec] configure: WARNING: Failed to find javacc, perhaps JavaCC is not installed?
     [exec]     You need not download JavaCC unless you plan on modifying .jjt files
     [exec]     in ptolemy/data/expr.
     [exec]     JavaCC is available from
     [exec]     https://javacc.org
     [exec] 
     [exec]     Note that the zip file that gets downloaded is actually an installer
     [exec]     that must be run to install the JavaCC.zip file that contains the classes.
     [exec] 
     [exec]     Note that JavaCC-4.1 and 4.2 will not work, there are problems with
     [exec]     ReInit() being static or not static.
     [exec] 
     [exec]     JavaCC-6.0 seems to not include the jjtree and javacc scripts, so
     [exec]     we recommend JavaCC-5.0.
     [exec] 
     [exec]     Try:
     [exec]     cd /home/travis/build/icyphy/ptII/vendors/sun
     [exec]     wget https://javacc.org/downloads/javacc-5.0.tar.gz
     [exec]     tar -zxf javacc-5.0.tar.gz
     [exec]     cd /home/travis/build/icyphy/ptII
     [exec]     ./configure
     [exec] 
     [exec]     Configure looks for JavaCC in /home/travis/build/icyphy/ptII/vendors/sun/javacc-5.0
     [exec]     so either install JavaCC in that location or use the --with-javacc= flag
     [exec]     and then rerun configure.'
     [exec] ls: cannot access '/home/travis/build/icyphy/ptII/vendors/jogl/lib/natives/linux-amd64/*.jar': No such file or directory
     [exec] configure: WARNING: /usr/local/lib/jvm/openjdk11/../include was not found.  As a result, compilation of JNI actors will fail.
     [exec] configure: WARNING: Failed to find matlab executable in the path.
     [exec]     Perhaps Matlab is not installed?
     [exec]     If Matlab is not present, then the Ptolemy II/Matlab interface in
     [exec]     $PTII/ptolemy/matlab will not be usable.
     [exec] configure: WARNING: Matlab was not found, but compiling the .java files in ptolemy/matlab/ should be ok.
     [exec] configure: WARNING: Failed to find the scalac binary,
     [exec]     so org/ptolemy/scala will be excluded
     [exec] SystemJar.main(): java.io.FileNotFoundException: /usr/local/lib/jvm/openjdk11/lib/rt.jar and /usr/local/lib/jvm/openjdk11/lib/core.jar and /usr/local/lib/jvm/openjdk11/../Classes/classes.jar either do not exist or are not readableSystemJar.main(): java.io.FileNotFoundException: /usr/local/lib/jvm/openjdk11/lib/rt.jar and /usr/local/lib/jvm/openjdk11/lib/core.jar and /usr/local/lib/jvm/openjdk11/../Classes/classes.jar either do not exist or are not readableconfigure: WARNING: ojdbc6.jar not found,
     [exec]     but only necessary to use database actors with Oracle.
     [exec]     If the mysql jar file is present, then the Oracle Java Database Connector is not necessary
     [exec]     To install ojdbc5.jar or ojdbc6.jar,
     [exec]     download it from https://www.oracle.com/technetwork/database/features/jdbc/jdbc-drivers-12c-download-1958347.html
     [exec]     copy it to ptolemy/actor/lib/database
     [exec]     and rerun ./configure
     [exec] configure: WARNING: Failed to find Batik Jar file
     [exec]     You need only have Batik if you are planning on rebuilding diva.jar
     [exec]     for use with Kepler.
     [exec]     Batik can be downloaded from http://xmlgraphics.apache.org/batik/,
     [exec]     batike-1.9/lib/batik-all-1.9.jar copied to /home/travis/build/icyphy/ptII/lib
     [exec]     and ./configure rerun.
     [exec] configure: WARNING: $TOSROOT is not set.  It must be set to use PtinyOS.
     [exec] configure: WARNING: $TOSROOT is set to '',
     [exec]      but there is no directory by that name, so we will not set up for PtinyOS.
     [exec]      For details, see /home/travis/build/icyphy/ptII/ptolemy/domains/ptinyos/README.txt.
     [exec] configure: WARNING: Failed to find giotto/gdk.jar
     [exec]     perhaps Giotto is not installed?
     [exec]     You need not download Giotto unless you plan on generating code for
     [exec]     Giotto models.
     [exec]     The Giotto SDK can be
     [exec]     downloaded from https://embedded.eecs.berkeley.edu/giotto/
     [exec]     Copy gdk.jar to /home/travis/build/icyphy/ptII/vendors/giotto, for example:
     [exec]         mkdir -p /home/travis/build/icyphy/ptII/vendors/giotto
     [exec]         cp C:/Program\ Files/Giotto*/gdk.jar /home/travis/build/icyphy/ptII/vendors/giotto/
     [exec] configure: WARNING: Failed to find boost/numeric/odeint.hpp, so FMI ++
     [exec]     will not be compiled. FMI++ is an extension of the
     [exec]     Functional Mockup Interface, see
     [exec]     http://sourceforge.net/p/fmipp/wiki/Home/
     [exec] ./makeapp: Could not find MacJVMTar in /home/travis/build/icyphy/ptII/vendors/installer/MacJVM.tar.gz, downloading it now: Wed Apr 13 02:18:06 UTC 2022
     [exec] Untaring /home/travis/build/icyphy/ptII/vendors/installer/MacJVM.tar.gz in /home/travis/build/icyphy/ptII/ now: Wed Apr 13 02:18:12 UTC 2022
     [exec] ./makeapp: Installation of /home/travis/build/icyphy/ptII/jdk succeeded.
     [exec] ./makeapp: copying /home/travis/build/icyphy/ptII/vendors/jogl to /home/travis/build/icyphy/ptII/bin
     [exec] touch CapeCode.app
     [exec] ./makeapp Vergil.app FULL -full
     [exec] Updating universalJavaApplicationStub from /home/travis/build/icyphy/ptII/vendors/universalJavaApplicationStub/src/universalJavaApplicationStub
     [exec] Untaring /home/travis/build/icyphy/ptII/vendors/installer/MacJVM.tar.gz in /home/travis/build/icyphy/ptII/ now: Wed Apr 13 02:18:15 UTC 2022
     [exec] ./makeapp: Installation of /home/travis/build/icyphy/ptII/jdk succeeded.
     [exec] touch Vergil.app
     [exec] chmod a+x ant cyphysim hyvisual startjini mkjnlp mkl4j mkosgi mkptdemo mkptlivelinkdemo mkpttest node npm ptjunit ptIITravisBuild.sh reloadAllAccessors updateFmu viptos 

build:

initReports:
    [mkdir] Created dir: /home/travis/build/icyphy/ptII/reports/doccheck
    [mkdir] Created dir: /home/travis/build/icyphy/ptII/reports/ojdcheck

test.core6.xml:
     [echo] 
     [echo]       ==test.core6.xml ==
     [echo]       This target runs the sixth batch of core tests
     [echo]       and generates JUnit xml output.
     [echo]       timeout = 4000000 milliseconds
     [echo]     
    [junit] javachdir: directory = ptolemy/configs/test/constraints/test
    [junit] javachdir: pwd: /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test  Invoking with -Djava.net.preferIPv4Stack=true
    [junit] +java --module-path /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib: --add-modules javafx.controls,javafx.swing,javafx.media, -Djava.net.preferIPv4Stack=true -Djavafx.verbose=true -Dprism.verbose=true -Dptolemy.ptII.dir=/home/travis/build/icyphy/ptII -Dptolemy.ptII.batchMode=true -Xmx3200m -classpath /home/travis/build/icyphy/ptII:/home/travis/build/icyphy/ptII/lib/asm-all-5.2.jar:/home/travis/build/icyphy/ptII/lib/nashorn-core-15.3.jar:/home/travis/build/icyphy/ptII/lib/bsh-2.0b4.jar:/home/travis/build/icyphy/ptII/lib/ptCal.jar:/home/travis/build/icyphy/ptII/lib/java_cup.jar:/home/travis/build/icyphy/ptII/lib/saxon8.jar:/home/travis/build/icyphy/ptII/lib/saxon8-dom.jar:/home/travis/build/icyphy/ptII/lib/chic.jar:/home/travis/build/icyphy/ptII/lib/ptcolt.jar:/home/travis/build/icyphy/ptII/vendors/misc/itext/iText.jar:/home/travis/build/icyphy/ptII/lib/g4ltl.jar:/home/travis/build/icyphy/ptII/lib/StructuralCoder.jar:/home/travis/build/icyphy/ptII/lib/jcerti.jar:/home/travis/build/icyphy/ptII/lib/javax.mail.jar:/home/travis/build/icyphy/ptII/vendors/JMF-2.1.1e/lib/jmf.jar:/home/travis/build/icyphy/ptII/lib/jna-4.0.0-variadic.jar:/home/travis/build/icyphy/ptII/vendors/misc/joystick/Joystick.jar:/home/travis/build/icyphy/ptII/lib/ptjacl.jar:/home/travis/build/icyphy/ptII/lib/jsoup-1.14.2.jar:/home/travis/build/icyphy/ptII/lib/junit-4.8.2.jar:/home/travis/build/icyphy/ptII/lib/JUnitParams-0.4.0.jar:/home/travis/build/icyphy/ptII/ptolemy/actor/lib/excel/jxl.jar:/home/travis/build/icyphy/ptII/lib/jython.jar:/home/travis/build/icyphy/ptII/lib/kieler.jar:/home/travis/build/icyphy/ptII/lib/oscP5.jar:/home/travis/build/icyphy/ptII/lib/nrjavaserial-3.11.0.devel.jar:/home/travis/build/icyphy/ptII/vendors/j3d/lib/Linux/j3dcore.jar:/home/travis/build/icyphy/ptII/vendors/j3d/lib/Linux/j3dutils.jar:/home/travis/build/icyphy/ptII/vendors/j3d/lib/Linux/vecmath.jar:/home/travis/build/icyphy/ptII/vendors/jogl/lib/Linux/gluegen-rt-natives-linux-amd64.jar:/home/travis/build/icyphy/ptII/vendors/jogl/lib/Linux/gluegen-rt.jar:/home/travis/build/icyphy/ptII/vendors/jogl/lib/Linux/jogl-all-natives-linux-amd64.jar:/home/travis/build/icyphy/ptII/vendors/jogl/lib/Linux/jogl-all.jar:/home/travis/build/icyphy/ptII/ptolemy/distributed/jini/jar/jini-core.jar:/home/travis/build/icyphy/ptII/ptolemy/distributed/jini/jar/jini-ext.jar:/home/travis/build/icyphy/ptII/ptolemy/distributed/jini/jar/sun-util.jar:/home/travis/build/icyphy/ptII/lib/protobuf-java-2.4.1.jar:/home/travis/build/icyphy/ptII/lib/org.eclipse.paho.client.mqttv3.jar:/home/travis/build/icyphy/ptII/lib/mapss.jar:/home/travis/build/icyphy/ptII/ptolemy/actor/ptalon/antlr/antlr.jar:/home/travis/build/icyphy/ptII/lib/JRI.jar:/home/travis/build/icyphy/ptII/lib/commons-lang-2.6.jar:/home/travis/build/icyphy/ptII/lib/commons-logging-1.1.1.jar:/home/travis/build/icyphy/ptII/lib/sootclasses.jar:/home/travis/build/icyphy/ptII/ptolemy/actor/lib/database/mysql-connector-java-8.0.26.jar:/home/travis/build/icyphy/ptII/vendors/misc/sphinx4/sphinx4-data-5prealpha.jar:/home/travis/build/icyphy/ptII/vendors/misc/sphinx4/sphinx4-core-5prealpha.jar:/home/travis/build/icyphy/ptII/lib/PDFRenderer.jar:/home/travis/build/icyphy/ptII/lib/svgSalamander.jar:/home/travis/build/icyphy/ptII/lib/rsyntaxtextarea-2.6.0-SNAPSHOT.jar:/home/travis/build/icyphy/ptII/lib/hazelcast-3.8.2.jar:/home/travis/build/icyphy/ptII/lib/jackson-annotations-2.9.0.jar:/home/travis/build/icyphy/ptII/lib/jackson-core-2.9.3.jar:/home/travis/build/icyphy/ptII/lib/jackson-databind-2.9.3.jar:/home/travis/build/icyphy/ptII/lib/netty-buffer-4.1.19.Final.jar:/home/travis/build/icyphy/ptII/lib/netty-codec-4.1.19.Final.jar:/home/travis/build/icyphy/ptII/lib/netty-codec-dns-4.1.19.Final.jar:/home/travis/build/icyphy/ptII/lib/netty-codec-http-4.1.19.Final.jar:/home/travis/build/icyphy/ptII/lib/netty-codec-http2-4.1.19.Final.jar:/home/travis/build/icyphy/ptII/lib/netty-common-4.1.19.Final.jar:/home/travis/build/icyphy/ptII/lib/netty-handler-4.1.19.Final.jar:/home/travis/build/icyphy/ptII/lib/netty-resolver-4.1.19.Final.jar:/home/travis/build/icyphy/ptII/lib/netty-resolver-dns-4.1.19.Final.jar:/home/travis/build/icyphy/ptII/lib/netty-transport-4.1.19.Final.jar:/home/travis/build/icyphy/ptII/lib/vertx-codegen-3.5.1.jar:/home/travis/build/icyphy/ptII/lib/vertx-core-3.5.2-SNAPSHOT.jar:/home/travis/build/icyphy/ptII/lib/vertx-hazelcast-3.5.1.jar:/home/travis/build/icyphy/ptII/lib/vertx-lang-js-3.5.1.jar:/home/travis/build/icyphy/ptII/lib/vertx-service-proxy-3.5.1.jar:/home/travis/build/icyphy/ptII/lib/vertx-web-3.5.1.jar:/home/travis/build/icyphy/ptII/lib/slf4j-api-1.7.13.jar:/home/travis/build/icyphy/ptII/lib/slf4j-simple-1.7.13.jar:/home/travis/build/icyphy/ptII/lib/webcam-capture-0.3.12.jar:/home/travis/build/icyphy/ptII/lib/bridj-0.7.0.jar:/home/travis/build/icyphy/ptII/lib/xbjlib-1.1.0.nrjavaserial.jar:/home/travis/build/icyphy/ptII/ptolemy/moml/test:/home/travis/build/icyphy/ptII/ant/lib/ant-launcher.jar:/home/travis/build/icyphy/ptII/ant/lib/ant.jar:/home/travis/build/icyphy/ptII/ant/lib/ant-junit.jar:/home/travis/build/icyphy/ptII/ant/lib/ant-junit4.jar org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner ptolemy.configs.test.constraints.test.junit.JUnitTclTest skipNonTests=false filtertrace=true haltOnError=false haltOnFailure=false formatter=org.apache.tools.ant.taskdefs.optional.junit.OutErrSummaryJUnitResultFormatter showoutput=true outputtoformatters=true logfailedtests=true threadid=0 logtestlistenerevents=false formatter=org.apache.tools.ant.taskdefs.optional.junit.XMLJUnitResultFormatter,/home/travis/build/icyphy/ptII/reports/junit/TEST-ptolemy.configs.test.constraints.test.junit.JUnitTclTest.xml crashfile=/home/travis/build/icyphy/ptII/junitvmwatcher9329464929254658524.properties propsfile=/home/travis/build/icyphy/ptII/junit980654878048065718.properties
    [junit] Running ptolemy.configs.test.constraints.test.junit.JUnitTclTest
    [junit] /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test/checkFullConstraints.tcl
    [junit] testDefs.tcl: setting time out to 9000 seconds at Wed Apr 13 02:18:18 UTC 2022
    [junit] FIXME FIXME FIXME FIXME FIXME FIXME
    [junit] ptolemy/configs/test/checkFullConstraints.tcl: FIXME: Invoking Configuration.check() 
    [junit] results in a memory leak that consumes
    [junit] more than 4gig of memory and causes problems under Travis.
    [junit] so, we check the constraints only of the full configuration.
    [junit] FIXME FIXME FIXME FIXME FIXME FIXME
    [junit]  Force everything to get expanded ptolemy/configs/configurationFile
    [junit]     (Skipping certain optional packages, jxta and viptos)
    [junit] JSAccessor: PT_NO_NET environment variable is set, so git pull and ptdoc are not being run.
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/adapters/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/audio/index.json
    [junit] WARNING: An illegal reflective access operation has occurred
    [junit] WARNING: Illegal reflective access by io.netty.util.internal.ReflectionUtil (file:/home/travis/build/icyphy/ptII/lib/netty-common-4.1.19.Final.jar) to constructor java.nio.DirectByteBuffer(long,int)
    [junit] WARNING: Please consider reporting this to the maintainers of io.netty.util.internal.ReflectionUtil
    [junit] WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
    [junit] WARNING: All illegal access operations will be denied in a future release
    [junit] Prism pipeline init order: es2 sw 
    [junit] Using Double Precision Marlin Rasterizer
    [junit] Using dirty region optimizations
    [junit] Not using texture mask for primitives
    [junit] Not forcing power of 2 sizes for textures
    [junit] Using hardware CLAMP_TO_ZERO mode
    [junit] Opting in for HiDPI pixel scaling
    [junit] Prism pipeline name = com.sun.prism.es2.ES2Pipeline
    [junit] Loading ES2 native library ... prism_es2
    [junit] 	succeeded.
    [junit] GLFactory using com.sun.prism.es2.X11GLFactory
    [junit] Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libprism_es2.so from relative path
    [junit] Failed Graphics Hardware Qualifier check.
    [junit] System GPU doesn't meet the es2 pipe requirement
    [junit] (X) Got class = class com.sun.prism.es2.ES2Pipeline
    [junit] GraphicsPipeline.createPipeline: error initializing pipeline com.sun.prism.es2.ES2Pipeline
    [junit] Prism pipeline name = com.sun.prism.sw.SWPipeline
    [junit] *** Fallback to Prism SW pipeline
    [junit] (X) Got class = class com.sun.prism.sw.SWPipeline
    [junit] Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libprism_sw.so from relative path
    [junit] Initialized prism pipeline: com.sun.prism.sw.SWPipeline
    [junit] JavaFX: using com.sun.javafx.tk.quantum.QuantumToolkit
    [junit] Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libglass.so from relative path
    [junit] Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libglassgtk3.so from relative path
    [junit] 
    [junit] ** (java:20132): WARNING **: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files
    [junit]  vsync: true vpipe: false
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/cameras/index.json
    [junit] [main] INFO com.github.sarxos.webcam.Webcam - WebcamDefaultDriver capture driver will be used
    [junit] No physical cameras found, using WebcamDummyDriver.
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/dashboard/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/devices/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/image/index.json
    [junit] CharacterRecognition: The tesseract module was not present.  The CharacterRecognition accessor is not supported on this accessor host. (Thread[main,5,main])
    [junit] CharacterRecognition: The tesseract module was not present.  The CharacterRecognition accessor is not supported on this accessor host. (Thread[main,5,main])
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/net/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/robotics/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/geodesy/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/services/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/signals/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/test/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/utilities/index.json
    [junit] The Mutable accessor original file has no documentation, so we are not running jsdoc on https://accessors.org/utilities/Mutable.js
    [junit] HLA version is 1.3.
    [junit] HLA version is 1.3.
    [junit] HLA version is 1.3.
    [junit] Loading accessor failed: ComputerVision.js
    [junit] ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] Failed to populate library.
    [junit] ptolemy.kernel.util.InternalErrorException: Loading accessor failed: ComputerVision.js
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:224)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 84 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Loading accessor failed: ComputerVision.js
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 84 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] 
    [junit] 
    [junit] ==== $PTII/ptolemy/configs/test/constraints/test/checkFullConstraints.tcl: configurationFile-3.1 Test to see if configurationFile contains any actors whose type constraints don't clone
    [junit] ==== Contents of test case:
    [junit] 
    [junit]             set results [[java::cast ptolemy.actor.gui.Configuration $configuration] check]
    [junit]             # FIXME: Need to call this twice to find problems with RecordAssembler.
    [junit]             puts "---- Second call to Configuration.check"
    [junit]             set results2 [[java::cast ptolemy.actor.gui.Configuration $configuration] check]
    [junit]             # Don't call return as the last line of a test proc, since return
    [junit]             # throws an exception.
    [junit]             list $results $results2
    [junit]     
    [junit] ==== Test generated error:
    [junit]     while executing
    [junit] ptolemy.kernel.util.InvalidStateException: Failed to populate Library
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Loading accessor failed: ComputerVision.js
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:307)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.InternalErrorException: Loading accessor failed: ComputerVision.js
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:224)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 84 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.InternalErrorException: Loading accessor failed: ComputerVision.js
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:224)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 84 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 84 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] 
    [junit]     while executing
    [junit] ptolemy.kernel.util.InvalidStateException: Failed to populate Library
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Loading accessor failed: ComputerVision.js
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]     while executing
    [junit] "[java::cast ptolemy.actor.gui.Configuration $configuration] check"
    [junit]     invoked from within
    [junit] "set results [[java::cast ptolemy.actor.gui.Configuration $configuration] check]"
    [junit]     ("uplevel" body line 2)
    [junit]     invoked from within
    [junit] "uplevel $contents_of_test"
    [junit] 1649816382852 ms. Memory: 1169408K Free: 171520K (15%)
    [junit] Setting containers of atomic entities to null
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/adapters/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/audio/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/cameras/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/dashboard/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/devices/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/image/index.json
    [junit] CharacterRecognition: The tesseract module was not present.  The CharacterRecognition accessor is not supported on this accessor host. (Thread[main,5,main])
    [junit] CharacterRecognition: The tesseract module was not present.  The CharacterRecognition accessor is not supported on this accessor host. (Thread[main,5,main])
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/net/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/robotics/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/geodesy/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/services/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/signals/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/test/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/utilities/index.json
    [junit] The Mutable accessor original file has no documentation, so we are not running jsdoc on https://accessors.org/utilities/Mutable.js
    [junit] HLA version is 1.3.
    [junit] HLA version is 1.3.
    [junit] HLA version is 1.3.
    [junit] Loading accessor failed: ComputerVision.js
    [junit] ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] Failed to populate library.
    [junit] ptolemy.kernel.util.InternalErrorException: Loading accessor failed: ComputerVision.js
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:224)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:349)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.allAtomicEntityList(CompositeEntity.java:188)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	... 62 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 69 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 71 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 75 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16800$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16799$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16824$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16818$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16817$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:349)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.allAtomicEntityList(CompositeEntity.java:188)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 69 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 71 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 75 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16800$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16799$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16824$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16818$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16817$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Loading accessor failed: ComputerVision.js
    [junit] 04/13/22 02:20:37
    [junit] Failed: 1  Total Tests: 1  ((Passed: 0, Newly Passed: 0)  Known Failed: 0) /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:349)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.allAtomicEntityList(CompositeEntity.java:188)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 71 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 75 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16800$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16799$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16824$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16818$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16817$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:349)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.allAtomicEntityList(CompositeEntity.java:188)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 75 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16800$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16799$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16824$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16818$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16817$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 77 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:349)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.allAtomicEntityList(CompositeEntity.java:188)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16800$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16799$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16824$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16818$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16817$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 77 more
    [junit] java.lang.Exception: Evaluating the Tcl file "/home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test/checkFullConstraints.tcl"resulted in a TclException being thrown.
    [junit] The Tcl errorInfo global variable has the value:
    [junit] ptolemy.kernel.util.InvalidStateException: Failed to populate Library
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Loading accessor failed: ComputerVision.js
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]     while executing
    [junit] "$configuration allAtomicEntityList"
    [junit]     invoked from within
    [junit] "set entityList [$configuration allAtomicEntityList]"
    [junit]     (procedure "checkConstraints" line 33)
    [junit]     invoked from within
    [junit] "checkConstraints full/configuration.xml"
    [junit]     (file "/home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test/checkFullConstraints.tcl" line 53)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:253)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] No auto/knownFailedTests/*.xml tests in /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test
    [junit] No auto/linux-amd64/*.xml tests in /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test
    [junit] AutoTests.java: About to close Vertx.
    [junit] AutoTests.java: Vertx closed.
    [junit] No auto/*.xml tests in /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test
    [junit] AutoTests.java: About to close Vertx.
    [junit] AutoTests.java: Vertx closed.
    [junit] Tests run: 4, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 138.987 sec
    [junit] Output:
    [junit] /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test/checkFullConstraints.tcl
    [junit] testDefs.tcl: setting time out to 9000 seconds at Wed Apr 13 02:18:18 UTC 2022
    [junit] FIXME FIXME FIXME FIXME FIXME FIXME
    [junit] ptolemy/configs/test/checkFullConstraints.tcl: FIXME: Invoking Configuration.check() 
    [junit] results in a memory leak that consumes
    [junit] more than 4gig of memory and causes problems under Travis.
    [junit] so, we check the constraints only of the full configuration.
    [junit] FIXME FIXME FIXME FIXME FIXME FIXME
    [junit]  Force everything to get expanded ptolemy/configs/configurationFile
    [junit]     (Skipping certain optional packages, jxta and viptos)
    [junit] JSAccessor: PT_NO_NET environment variable is set, so git pull and ptdoc are not being run.
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/adapters/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/audio/index.json
    [junit] Prism pipeline init order: es2 sw 
    [junit] Using Double Precision Marlin Rasterizer
    [junit] Using dirty region optimizations
    [junit] Not using texture mask for primitives
    [junit] Not forcing power of 2 sizes for textures
    [junit] Using hardware CLAMP_TO_ZERO mode
    [junit] Opting in for HiDPI pixel scaling
    [junit] Prism pipeline name = com.sun.prism.es2.ES2Pipeline
    [junit] Loading ES2 native library ... prism_es2
    [junit] 	succeeded.
    [junit] GLFactory using com.sun.prism.es2.X11GLFactory
    [junit] (X) Got class = class com.sun.prism.es2.ES2Pipeline
    [junit] Prism pipeline name = com.sun.prism.sw.SWPipeline
    [junit] (X) Got class = class com.sun.prism.sw.SWPipeline
    [junit] Initialized prism pipeline: com.sun.prism.sw.SWPipeline
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/cameras/index.json
    [junit] No physical cameras found, using WebcamDummyDriver.
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/dashboard/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/devices/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/image/index.json
    [junit] CharacterRecognition: The tesseract module was not present.  The CharacterRecognition accessor is not supported on this accessor host. (Thread[main,5,main])
    [junit] CharacterRecognition: The tesseract module was not present.  The CharacterRecognition accessor is not supported on this accessor host. (Thread[main,5,main])
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/net/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/robotics/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/geodesy/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/services/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/signals/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/test/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/utilities/index.json
    [junit] The Mutable accessor original file has no documentation, so we are not running jsdoc on https://accessors.org/utilities/Mutable.js
    [junit] HLA version is 1.3.
    [junit] HLA version is 1.3.
    [junit] HLA version is 1.3.
    [junit] Loading accessor failed: ComputerVision.js
    [junit] 
    [junit] 
    [junit] ==== $PTII/ptolemy/configs/test/constraints/test/checkFullConstraints.tcl: configurationFile-3.1 Test to see if configurationFile contains any actors whose type constraints don't clone
    [junit] ==== Contents of test case:
    [junit] 
    [junit]             set results [[java::cast ptolemy.actor.gui.Configuration $configuration] check]
    [junit]             # FIXME: Need to call this twice to find problems with RecordAssembler.
    [junit]             puts "---- Second call to Configuration.check"
    [junit]             set results2 [[java::cast ptolemy.actor.gui.Configuration $configuration] check]
    [junit]             # Don't call return as the last line of a test proc, since return
    [junit]             # throws an exception.
    [junit]             list $results $results2
    [junit]     
    [junit] ==== Test generated error:
    [junit]     while executing
    [junit] ptolemy.kernel.util.InvalidStateException: Failed to populate Library
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Loading accessor failed: ComputerVision.js
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:307)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.InternalErrorException: Loading accessor failed: ComputerVision.js
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:224)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 84 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.InternalErrorException: Loading accessor failed: ComputerVision.js
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:224)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 84 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 84 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] 
    [junit]     while executing
    [junit] ptolemy.kernel.util.InvalidStateException: Failed to populate Library
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Loading accessor failed: ComputerVision.js
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]     while executing
    [junit] "[java::cast ptolemy.actor.gui.Configuration $configuration] check"
    [junit]     invoked from within
    [junit] "set results [[java::cast ptolemy.actor.gui.Configuration $configuration] check]"
    [junit]     ("uplevel" body line 2)
    [junit]     invoked from within
    [junit] "uplevel $contents_of_test"
    [junit] 1649816382852 ms. Memory: 1169408K Free: 171520K (15%)
    [junit] Setting containers of atomic entities to null
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/adapters/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/audio/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/cameras/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/dashboard/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/devices/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/image/index.json
    [junit] CharacterRecognition: The tesseract module was not present.  The CharacterRecognition accessor is not supported on this accessor host. (Thread[main,5,main])
    [junit] CharacterRecognition: The tesseract module was not present.  The CharacterRecognition accessor is not supported on this accessor host. (Thread[main,5,main])
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/net/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/robotics/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/geodesy/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/services/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/signals/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/test/index.json
    [junit] Retrieving library from file:/home/travis/build/icyphy/ptII/org/terraswarm/accessor/accessors/web/utilities/index.json
    [junit] The Mutable accessor original file has no documentation, so we are not running jsdoc on https://accessors.org/utilities/Mutable.js
    [junit] HLA version is 1.3.
    [junit] HLA version is 1.3.
    [junit] HLA version is 1.3.
    [junit] Loading accessor failed: ComputerVision.js
    [junit] 04/13/22 02:20:37
    [junit] Failed: 1  Total Tests: 1  ((Passed: 0, Newly Passed: 0)  Known Failed: 0) /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test
    [junit] No auto/knownFailedTests/*.xml tests in /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test
    [junit] No auto/linux-amd64/*.xml tests in /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test
    [junit] AutoTests.java: About to close Vertx.
    [junit] AutoTests.java: Vertx closed.
    [junit] No auto/*.xml tests in /home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test
    [junit] AutoTests.java: About to close Vertx.
    [junit] AutoTests.java: Vertx closed.
    [junit] 
    [junit] Error: 
    [junit] Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libprism_es2.so from relative path
    [junit] Failed Graphics Hardware Qualifier check.
    [junit] System GPU doesn't meet the es2 pipe requirement
    [junit] GraphicsPipeline.createPipeline: error initializing pipeline com.sun.prism.es2.ES2Pipeline
    [junit] *** Fallback to Prism SW pipeline
    [junit] Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libprism_sw.so from relative path
    [junit] JavaFX: using com.sun.javafx.tk.quantum.QuantumToolkit
    [junit] Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libglass.so from relative path
    [junit] Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libglassgtk3.so from relative path
    [junit]  vsync: true vpipe: false
    [junit] [main] INFO com.github.sarxos.webcam.Webcam - WebcamDefaultDriver capture driver will be used
    [junit] Loading accessor failed: ComputerVision.js
    [junit] ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] Failed to populate library.
    [junit] ptolemy.kernel.util.InternalErrorException: Loading accessor failed: ComputerVision.js
    [junit]   in .actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:224)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 84 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 84 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 86 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 90 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.entityList(EntityLibrary.java:366)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2769)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity._unlinkLevelCrossingLinksToOutside(CompositeEntity.java:2775)
    [junit] 	at ptolemy.kernel.CompositeEntity.setContainer(CompositeEntity.java:1878)
    [junit] 	at ptolemy.actor.gui.Configuration.check(Configuration.java:415)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.UplevelCmd.cmdProc(UplevelCmd.java:93)
    [junit] 	at tcl.lang.AutoloadStub.cmdProc(Extension.java:144)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1841)
    [junit] 	at tcl.lang.CatchCmd.cmdProc(CatchCmd.java:42)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3401$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3400$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3425$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3419$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$3418$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 92 more
    [junit] Loading accessor failed: ComputerVision.js
    [junit] ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] Failed to populate library.
    [junit] ptolemy.kernel.util.InternalErrorException: Loading accessor failed: ComputerVision.js
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:224)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:349)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.allAtomicEntityList(CompositeEntity.java:188)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	... 62 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 69 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 71 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 75 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16800$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16799$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16824$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16818$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16817$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1619)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:349)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.allAtomicEntityList(CompositeEntity.java:188)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	... 69 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 71 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 75 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16800$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16799$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16824$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16818$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16817$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1891)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:349)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.allAtomicEntityList(CompositeEntity.java:188)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	... 71 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 75 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16800$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16799$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16824$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16818$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16817$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 77 more
    [junit] Caused by: ptolemy.kernel.util.IllegalActionException: Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2501)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:349)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.allAtomicEntityList(CompositeEntity.java:188)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	... 75 more
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16800$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16799$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16824$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16818$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16817$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 77 more
    [junit] Caused by: javax.script.ScriptException: Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:463)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:385)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:186)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript._createEngineAndEvaluateSetup(JavaScript.java:2497)
    [junit] 	at ptolemy.actor.lib.jjs.JavaScript.attributeChanged(JavaScript.java:548)
    [junit] 	at org.terraswarm.accessor.JSAccessor.attributeChanged(JSAccessor.java:312)
    [junit] 	at ptolemy.data.expr.Variable._setTokenAndNotify(Variable.java:2271)
    [junit] 	at ptolemy.data.expr.Variable._evaluate(Variable.java:1873)
    [junit] 	at ptolemy.data.expr.Variable._propagate(Variable.java:1984)
    [junit] 	at ptolemy.data.expr.Variable.validate(Variable.java:1596)
    [junit] 	at ptolemy.moml.MoMLParser.endDocument(MoMLParser.java:867)
    [junit] 	at com.microstar.xml.XmlParser.doParse(XmlParser.java:162)
    [junit] 	at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1676)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1617)
    [junit] 	at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1792)
    [junit] 	at org.terraswarm.accessor.AccessorLibrary.populate(AccessorLibrary.java:194)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:349)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.moml.EntityLibrary.deepEntityList(EntityLibrary.java:350)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.deepEntityList(CompositeEntity.java:714)
    [junit] 	at ptolemy.kernel.CompositeEntity.allAtomicEntityList(CompositeEntity.java:188)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:129)
    [junit] 	at tcl.lang.JavaInvoke.call(JavaInvoke.java:253)
    [junit] 	at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:116)
    [junit] 	at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:727)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Parser.evalTokens(Parser.java:930)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1125)
    [junit] 	at tcl.lang.Procedure.cmdProc(Procedure.java:175)
    [junit] 	at tcl.lang.Parser.evalObjv(Parser.java:740)
    [junit] 	at tcl.lang.Parser.eval2(Parser.java:1138)
    [junit] 	at tcl.lang.Interp.eval(Interp.java:1782)
    [junit] 	at tcl.lang.Interp.evalFile(Interp.java:1880)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:233)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] Caused by: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454:12 Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
    [junit] 	at org.openjdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16800$16264AAA$require.L:45#_require(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:454)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16799$21065A$require.L:45#_requireClosure#L:466(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16824$1AAAAAAAAAAAAAA$\^function\_.L:1(<function>:62)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16818$17933AAAAAA$require.L:1#Accessor(/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at org.openjdk.nashorn.internal.scripts.Script$Recompilation$16817$2801AAA$\^eval\_.evaluateCode(<eval>:96)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:652)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    [junit] 	at org.openjdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:520)
    [junit] 	at org.openjdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:187)
    [junit] 	at org.openjdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:379)
    [junit] 	... 77 more
    [junit] java.lang.Exception: Evaluating the Tcl file "/home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test/checkFullConstraints.tcl"resulted in a TclException being thrown.
    [junit] The Tcl errorInfo global variable has the value:
    [junit] ptolemy.kernel.util.InvalidStateException: Failed to populate Library
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Loading accessor failed: ComputerVision.js
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Error evaluating expression:
    [junit] // A computer vision accessor.
    [junit] ...
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision.script
    [junit] Because:
    [junit] Failed to evaluate script.
    [junit]   in .configuration.actor library.MoreLibraries.Accessors.image.ComputerVision
    [junit] Because:
    [junit] Error: Error executing module @accessors-modules/computer-vision line #89 : Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] In file: /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/modules/computerVision/computerVision.js
    [junit] Error: Could not find the org.ptolemy.opencv.ComputerVision class, perhaps OpenCV was not installed. The OpenCV API can be downloaded from http://opencv.org.  Under Mac OS X, try:  :sudo port install opencv +python27 +java".See org/ptolemy/opencv/package.html for installation help.
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:89)
    [junit] 	at _require (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:429)
    [junit] 	at <anonymous> (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js:467)
    [junit] 	at <anonymous> (<function>:62)
    [junit] 	at Accessor (/home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js#409:30<eval>:545)
    [junit] 	at evaluateCode (<eval>:96) in /home/travis/build/icyphy/ptII/ptolemy/actor/lib/jjs/external/require.js at line number 454 at column number 12
    [junit]     while executing
    [junit] "$configuration allAtomicEntityList"
    [junit]     invoked from within
    [junit] "set entityList [$configuration allAtomicEntityList]"
    [junit]     (procedure "checkConstraints" line 33)
    [junit]     invoked from within
    [junit] "checkConstraints full/configuration.xml"
    [junit]     (file "/home/travis/build/icyphy/ptII/ptolemy/configs/test/constraints/test/checkFullConstraints.tcl" line 53)
    [junit] 	at ptolemy.util.test.junit.TclTests.RunTclFile(TclTests.java:253)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    [junit] 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    [junit] 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    [junit] 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    [junit] 	at junitparams.internal.InvokeParameterisedMethod.evaluate(InvokeParameterisedMethod.java:102)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runMethodInvoker(ParameterisedTestMethodRunner.java:47)
    [junit] 	at junitparams.internal.ParameterisedTestMethodRunner.runTestMethod(ParameterisedTestMethodRunner.java:41)
    [junit] 	at junitparams.internal.ParameterisedTestClassRunner.runParameterisedTest(ParameterisedTestClassRunner.java:143)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:237)
    [junit] 	at junitparams.JUnitParamsRunner.runChild(JUnitParamsRunner.java:215)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:128)
    [junit] 	at org.junit.runners.Suite.runChild(Suite.java:24)
    [junit] 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    [junit] 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    [junit] 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    [junit] 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    [junit] 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    [junit] 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    [junit] 	at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
    [junit] 	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
    [junit] 
    [junit] QuantumRenderer: shutdown
    [junit] Test ptolemy.configs.test.constraints.test.junit.JUnitTclTest FAILED

BUILD SUCCESSFUL
Total time: 3 minutes 56 seconds