--- old/src/java.desktop/share/classes/com/sun/media/sound/AbstractDataLine.java 2016-05-17 17:13:11.000000000 +0300 +++ new/src/java.desktop/share/classes/com/sun/media/sound/AbstractDataLine.java 2016-05-17 17:13:11.000000000 +0300 @@ -1,5 +1,5 @@ /* - * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -59,10 +59,9 @@ // current buffer size in bytes protected int bufferSize; - protected boolean running = false; - private boolean started = false; - private boolean active = false; - + private volatile boolean running; + private volatile boolean started; + private volatile boolean active; /** * Constructs a new AbstractLine. --- old/src/java.desktop/share/classes/com/sun/media/sound/AbstractLine.java 2016-05-17 17:13:12.000000000 +0300 +++ new/src/java.desktop/share/classes/com/sun/media/sound/AbstractLine.java 2016-05-17 17:13:12.000000000 +0300 @@ -1,5 +1,5 @@ /* - * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -47,7 +47,7 @@ protected final Line.Info info; protected Control[] controls; AbstractMixer mixer; - private boolean open = false; + private volatile boolean open; private final Vector listeners = new Vector<>(); /** --- old/src/java.desktop/share/classes/com/sun/media/sound/AbstractMidiDevice.java 2016-05-17 17:13:13.000000000 +0300 +++ new/src/java.desktop/share/classes/com/sun/media/sound/AbstractMidiDevice.java 2016-05-17 17:13:13.000000000 +0300 @@ -1,5 +1,5 @@ /* - * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -65,7 +65,7 @@ // DEVICE STATE - private boolean open = false; + private volatile boolean open; private int openRefCount; /** List of Receivers and Transmitters that opened the device implicitely. @@ -75,7 +75,7 @@ /** * This is the device handle returned from native code */ - protected long id = 0; + protected volatile long id; @@ -479,7 +479,7 @@ (which opens the device implicitely). */ abstract class AbstractReceiver implements MidiDeviceReceiver { - private boolean open = true; + private volatile boolean open = true; /** Deliver a MidiMessage. --- old/src/java.desktop/share/classes/com/sun/media/sound/MidiInDevice.java 2016-05-17 17:13:13.000000000 +0300 +++ new/src/java.desktop/share/classes/com/sun/media/sound/MidiInDevice.java 2016-05-17 17:13:13.000000000 +0300 @@ -1,5 +1,5 @@ /* - * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -38,7 +38,7 @@ */ final class MidiInDevice extends AbstractMidiDevice implements Runnable { - private Thread midiInThread = null; + private volatile Thread midiInThread; // CONSTRUCTOR --- old/src/java.desktop/share/classes/com/sun/media/sound/RealTimeSequencer.java 2016-05-17 17:13:14.000000000 +0300 +++ new/src/java.desktop/share/classes/com/sun/media/sound/RealTimeSequencer.java 2016-05-17 17:13:14.000000000 +0300 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -106,7 +106,7 @@ /** * True if the sequence is running. */ - private boolean running = false; + private volatile boolean running; /** the thread for pushing out the MIDI messages */ @@ -116,7 +116,7 @@ /** * True if we are recording */ - private boolean recording = false; + private volatile boolean recording; /** --- old/src/java.desktop/share/classes/javax/sound/midi/Sequence.java 2016-05-17 17:13:15.000000000 +0300 +++ new/src/java.desktop/share/classes/javax/sound/midi/Sequence.java 2016-05-17 17:13:15.000000000 +0300 @@ -1,5 +1,5 @@ /* - * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -266,11 +266,7 @@ * @see #getTracks */ public boolean deleteTrack(Track track) { - - synchronized(tracks) { - - return tracks.removeElement(track); - } + return tracks.removeElement(track); } /** @@ -282,8 +278,7 @@ * @see #deleteTrack */ public Track[] getTracks() { - - return tracks.toArray(new Track[tracks.size()]); + return tracks.toArray(new Track[0]); } /** --- /dev/null 2016-05-17 17:13:16.000000000 +0300 +++ new/test/javax/sound/sampled/Clip/IsRunningHang.java 2016-05-17 17:13:15.000000000 +0300 @@ -0,0 +1,117 @@ +/* + * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +import java.util.ArrayList; +import java.util.List; +import java.util.concurrent.CountDownLatch; + +import javax.sound.sampled.AudioFormat; +import javax.sound.sampled.AudioSystem; +import javax.sound.sampled.Clip; +import javax.sound.sampled.DataLine; +import javax.sound.sampled.Line; +import javax.sound.sampled.LineEvent; +import javax.sound.sampled.LineUnavailableException; + +/** + * @test + * @bug 8156169 + * @run main/othervm/timeout=300 IsRunningHang + */ +public final class IsRunningHang { + + private static CountDownLatch go; + + /** + * We will try to use all usually supported formats. + */ + private static final List formats = new ArrayList<>(); + + private static final AudioFormat.Encoding[] encodings = { + AudioFormat.Encoding.ALAW, AudioFormat.Encoding.ULAW, + AudioFormat.Encoding.PCM_SIGNED, AudioFormat.Encoding.PCM_UNSIGNED, + AudioFormat.Encoding.PCM_FLOAT + }; + + private static final int[] sampleRates = {8000, 16000, 48000}; + + private static final int[] sampleBits = {8, 16, 24, 32, 64}; + + private static final int[] channels = {1, 2, 3, 5}; + + static { + for (final Boolean end : new boolean[]{false, true}) { + for (final int sampleSize : sampleBits) { + for (final int sampleRate : sampleRates) { + for (final int channel : channels) { + for (final AudioFormat.Encoding enc : encodings) { + int s = ((sampleSize + 7) / 8) * channel; + formats.add(new AudioFormat(enc, sampleRate, + sampleSize, channel, + s, sampleRate, end)); + } + } + } + } + } + } + + public static void main(final String[] args) throws Exception { + for (final AudioFormat format : formats) { + System.out.println("format = " + format); + // create a 0.5-second data + byte[] soundData = new byte[(int) (format.getFrameRate() + * format.getFrameSize() + / 2)]; + try { + test(format, soundData); + } catch (LineUnavailableException | IllegalArgumentException ignored) { + // the test is not applicable + } + } + } + + private static void test(final AudioFormat format, final byte[] data) + throws Exception { + final Line.Info info = new DataLine.Info(Clip.class, format); + final Clip clip = (Clip) AudioSystem.getLine(info); + + go = new CountDownLatch(1); + clip.addLineListener(event -> { + if (event.getType().equals(LineEvent.Type.START)) { + go.countDown(); + } + }); + + clip.open(format, data, 0, data.length); + clip.start(); + go.await(); + while (clip.isRunning()) { + // This loop should not hang + } + while (clip.isActive()) { + // This loop should not hang + } + clip.close(); + } +}