| /* |
| * Copyright (c) 2018, 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.awt.AWTEvent; |
| import java.awt.event.InvocationEvent; |
| import java.lang.reflect.Constructor; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import sun.awt.AppContext; |
| import sun.awt.SunToolkit; |
| |
| /** |
| * @test |
| * @bug 8204142 |
| * @author Sergey Bylokhov |
| * @key headful |
| * @modules java.desktop/sun.awt |
| * @run main/othervm/timeout=30 MultipleContextsUnitTest |
| */ |
| public final class MultipleContextsUnitTest { |
| |
| private static final int COUNT = 20; |
| private static final AppContext[] apps = new AppContext[COUNT]; |
| private static final CountDownLatch go = new CountDownLatch(1); |
| private static final CountDownLatch end = new CountDownLatch(COUNT); |
| |
| private static volatile int createSENumber = 0; |
| private static volatile int dispatchSENumber = 0; |
| |
| public static void main(final String[] args) throws Exception { |
| for (int i = 0; i < COUNT; i++) { |
| Thread t = testThread(i); |
| t.start(); |
| t.join(); |
| } |
| |
| for (AppContext app : apps) { |
| SunToolkit.postEvent(app, new InvocationEvent(new Object(), () -> { |
| try { |
| go.await(); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| })); |
| } |
| |
| // eventOne - created first, but posted last |
| AWTEvent eventOne = getSequencedEvent(); |
| { |
| // eventTwo and eventThree - posted in the reverse order |
| AppContext app = apps[1]; |
| AWTEvent eventTwo = getSequencedEvent(); |
| AWTEvent eventThree = getSequencedEvent(); |
| SunToolkit.postEvent(app, eventThree); |
| SunToolkit.postEvent(app, eventTwo); |
| SunToolkit.postEvent(app, new InvocationEvent(new Object(), () -> { |
| System.err.println(AppContext.getAppContext()); |
| end.countDown(); |
| })); |
| } |
| |
| for (int i = 2; i < apps.length; i++) { |
| // eventTwo and eventThree - posted in the correct order |
| AppContext app = apps[i]; |
| |
| AWTEvent eventTwo = getSequencedEvent(); |
| SunToolkit.postEvent(app, eventTwo); |
| |
| AtomicReference<Boolean> called1 = new AtomicReference(false); |
| AtomicReference<Boolean> called2 = new AtomicReference(false); |
| int num1 = createSENumber; |
| SunToolkit.postEvent(app, new InvocationEvent(new Object(), () -> { |
| if (dispatchSENumber < num1) { |
| throw new RuntimeException("Dispatched too early"); |
| } |
| called1.set(true); |
| if (called2.get()) { |
| throw new RuntimeException("Second event is called before first"); |
| } |
| })); |
| AWTEvent eventThree = getSequencedEvent(); |
| SunToolkit.postEvent(app, eventThree); |
| int num2 = createSENumber; |
| SunToolkit.postEvent(app, new InvocationEvent(new Object(), () -> { |
| if (dispatchSENumber < num2) { |
| throw new RuntimeException("Dispatched too early"); |
| } |
| called2.set(true); |
| if (!called1.get()) { |
| throw new RuntimeException("First event is not called before second"); |
| } |
| System.err.println(AppContext.getAppContext()); |
| end.countDown(); |
| })); |
| } |
| |
| |
| |
| // eventOne should flush all EDT |
| SunToolkit.postEvent(apps[0], eventOne); |
| SunToolkit.postEvent(apps[0], new InvocationEvent(new Object(), () -> { |
| System.err.println(AppContext.getAppContext()); |
| end.countDown(); |
| })); |
| |
| go.countDown(); |
| |
| System.err.println("Start to wait"); |
| end.await(); |
| System.err.println("End to wait"); |
| } |
| |
| private static Thread testThread(int index) { |
| final ThreadGroup group = new ThreadGroup("TG " + index); |
| return new Thread(group, () -> { |
| apps[index] = SunToolkit.createNewAppContext(); |
| }); |
| } |
| |
| private static AWTEvent getSequencedEvent() |
| { |
| int num = createSENumber++; |
| |
| InvocationEvent wrapMe = new InvocationEvent(new Object(), () -> { |
| if (num != dispatchSENumber++) { |
| System.err.println("num: " + num); |
| System.err.println("dispatchSENumber: " + dispatchSENumber); |
| throw new RuntimeException("Wrong order"); |
| } |
| }); |
| |
| try { |
| /* |
| * SequencedEvent is a package private class, which cannot be instantiated |
| * by importing. So use reflection to create an instance. |
| */ |
| Class<? extends AWTEvent> seqClass = (Class<? extends AWTEvent>) Class.forName("java.awt.SequencedEvent"); |
| Constructor<? extends AWTEvent> |
| seqConst = seqClass.getConstructor(AWTEvent.class); |
| seqConst.setAccessible(true); |
| return seqConst.newInstance(wrapMe); |
| } catch (Throwable err) { |
| throw new RuntimeException("Unable to instantiate SequencedEvent",err); |
| } |
| } |
| } |