001/* A class that extends FIFOQueue for testing the clone method
002
003 Copyright (c) 1998-2014 The Regents of the University of California.
004 All rights reserved.
005 Permission is hereby granted, without written agreement and without
006 license or royalty fees, to use, copy, modify, and distribute this
007 software and its documentation for any purpose, provided that the above
008 copyright notice and the following two paragraphs appear in all copies
009 of this software.
010
011 IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
012 FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
013 ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
014 THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
015 SUCH DAMAGE.
016
017 THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
018 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
019 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
020 PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
021 CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
022 ENHANCEMENTS, OR MODIFICATIONS.
023
024 PT_COPYRIGHT_VERSION_2
025 COPYRIGHTENDKEY
026
027 */
028package ptolemy.actor.util.test;
029
030import ptolemy.actor.util.FIFOQueue;
031
032///////////////////////////////////////////////////////////////////
033//// FIFOQueue
034
035/**
036
037 This class is a test for the case whre FIFOQueue.clone() does not call super.clone().
038
039  FindBugs reports this as:
040  "clone method does not call super.clone()"
041
042  <p>"This non-final class defines a clone() method that does
043  not call super.clone(). If this class ("A") is extended by
044  a subclass ("B"), and the subclass B calls super.clone(),
045  then it is likely that B's clone() method will return an
046  object of type A, which violates the standard contract for
047  clone()."</p>
048
049  <p>"If all clone() methods call super.clone(), then they are
050  guaranteed to use Object.clone(), which always returns an
051  object of the correct type."</p>
052
053 @author Christopher
054 @version $Id$
055 @since Ptolemy II 10.0
056 @Pt.ProposedRating Red (cxh)
057 @Pt.AcceptedRating Red (liuj)
058
059 */
060public class FIFOQueueTest extends FIFOQueue {
061    /** Return a clone of this object.
062     *  @exception CloneNotSupportedException If thrown by
063     *  a parent class.
064     */
065    @Override
066    public Object clone() throws CloneNotSupportedException {
067        return super.clone();
068    }
069}