001/*
002 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023/*
024 */
025package com.oracle.graal.jtt.threads;
026
027import org.junit.*;
028
029import com.oracle.graal.jtt.*;
030
031/**
032 * Inspired by {@code com.sun.media.sound.DirectAudioDevice$DirectDL.drain()}.
033 *
034 * Two loop exits hold a monitor while merging.
035 *
036 */
037public final class SynchronizedLoopExit01 extends JTTTest {
038
039    protected Object object = new Object();
040    protected volatile boolean drained = false;
041    protected volatile boolean someBoolean = true;
042
043    public boolean test() {
044        boolean b = true;
045        while (!drained) {
046            synchronized (object) {
047                boolean c = b = someBoolean;
048                if (c || drained) {
049                    break;
050                }
051            }
052        }
053        return b;
054    }
055
056    @Test(timeout = 20000)
057    public void run0() throws Throwable {
058        runTest("test");
059    }
060
061}