1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 @test 26 @bug 8031694 27 @summary [macosx] TwentyThousandTest test intermittently hangs 28 @author Oleg Pekhovskiy 29 @run main EDTShutdownTest 30 */ 31 32 import java.awt.EventQueue; 33 import java.awt.Toolkit; 34 import java.lang.reflect.InvocationTargetException; 35 import java.lang.reflect.Method; 36 import sun.awt.AWTAccessor; 37 38 public class EDTShutdownTest { 39 40 private static boolean passed = false; 41 42 public static void main(String[] args) { 43 // Force EDT start with InvocationEvent 44 EventQueue.invokeLater(() -> { 45 // EventQueue is empty now 46 EventQueue queue = Toolkit.getDefaultToolkit() 47 .getSystemEventQueue(); 48 Thread thread = AWTAccessor.getEventQueueAccessor() 49 .getDispatchThread(queue); 50 try { 51 /* 52 * Clear EventDispatchThread.doDispatch flag to break message 53 * loop in EventDispatchThread.pumpEventsForFilter() 54 */ 55 Method stopDispatching = thread.getClass() 56 .getDeclaredMethod("stopDispatching", null); 57 stopDispatching.setAccessible(true); 58 stopDispatching.invoke(thread, null); 59 60 /* 61 * Post another InvocationEvent that must be handled by another 62 * instance of EDT 63 */ 64 EventQueue.invokeLater(() -> { 65 passed = true; 66 }); 67 } 68 catch (InvocationTargetException | NoSuchMethodException 69 | IllegalAccessException e) { 70 } 71 }); 72 73 // Wait for EDT shutdown 74 EventQueue queue = Toolkit.getDefaultToolkit().getSystemEventQueue(); 75 Thread thread = AWTAccessor.getEventQueueAccessor() 76 .getDispatchThread(queue); 77 try { 78 thread.join(); 79 80 /* 81 * Wait for another EDT instance to handle the InvocationEvent 82 * and shutdown 83 */ 84 thread = AWTAccessor.getEventQueueAccessor() 85 .getDispatchThread(queue); 86 if (thread != null) { 87 thread.join(); 88 } 89 } 90 catch (InterruptedException e) { 91 } 92 93 if (passed) { 94 System.out.println("Test PASSED!"); 95 } 96 else { 97 throw new RuntimeException("Test FAILED!"); 98 } 99 } 100 }