No executionListeners? Error message was: Exception occurred: class ptolemy.kernel.util.IllegalActionException(The model is not idle, it is initializing
  in .toplevel.manager)
ptolemy.kernel.util.IllegalActionException: The model is not idle, it is initializing
  in .toplevel.manager
	at ptolemy.actor.Manager.preinitializeAndResolveTypes(Manager.java:991)
	at ptolemy.actor.Manager.initialize(Manager.java:710)
	at ptolemy.actor.Manager.execute(Manager.java:356)
	at ptolemy.actor.Manager.run(Manager.java:1263)
	at ptolemy.actor.Manager$PtolemyRunThread.run(Manager.java:1933)
Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.
Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libprism_es2.so from relative path
Failed Graphics Hardware Qualifier check.
System GPU doesn't meet the es2 pipe requirement
GraphicsPipeline.createPipeline: error initializing pipeline com.sun.prism.es2.ES2Pipeline
*** Fallback to Prism SW pipeline
Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libprism_sw.so from relative path
JavaFX: using com.sun.javafx.tk.quantum.QuantumToolkit
Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libglass.so from relative path
Loaded /home/travis/build/icyphy/ptII/vendors/javafx/javafx-sdk-11.0.2/lib/./libglassgtk3.so from relative path
 vsync: true vpipe: false
[main] INFO com.github.sarxos.webcam.Webcam - WebcamDefaultDriver capture driver will be used