1 /* 2 * Copyright (c) 2009, 2016, 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 @key headful 27 @bug 4913324 28 @author Oleg Sukhodolsky: area=eventqueue 29 @modules java.desktop/sun.awt 30 @run main/timeout=30 PushPopTest 31 */ 32 33 import java.awt.*; 34 import java.awt.event.*; 35 import java.util.EmptyStackException; 36 import sun.awt.SunToolkit; 37 38 public class PushPopTest { 39 40 public static Frame frame; 41 public static void main(String[] args) { 42 frame = new Frame(""); 43 frame.pack(); 44 45 Runnable dummy = new Runnable() { 46 public void run() { 47 System.err.println("Dummy is here."); 48 System.err.flush(); 49 } 50 }; 51 EventQueue seq = Toolkit.getDefaultToolkit().getSystemEventQueue(); 52 MyEventQueue1 eq1 = new MyEventQueue1(); 53 MyEventQueue2 eq2 = new MyEventQueue2(); 54 EventQueue.invokeLater(dummy); 55 56 seq.push(eq1); 57 EventQueue.invokeLater(dummy); 58 59 eq1.push(eq2); 60 EventQueue.invokeLater(dummy); 61 Runnable runnable = new Runnable() { 62 public void run() { 63 System.err.println("Dummy from SunToolkit"); 64 System.err.flush(); 65 } 66 }; 67 InvocationEvent ie = new InvocationEvent(eq2, runnable, null, false); 68 // System.err.println(ie); 69 SunToolkit.postEvent(SunToolkit.targetToAppContext(frame), ie); 70 eq1.pop(); 71 frame.dispose(); 72 } 73 } 74 75 class MyEventQueue1 extends EventQueue { 76 77 public void pop() { 78 super.pop(); 79 } 80 } 81 82 class MyEventQueue2 extends EventQueue { 83 84 protected void pop() { 85 System.err.println("pop2()"); 86 Thread.dumpStack(); 87 try { 88 EventQueue.invokeAndWait(new Runnable() { 89 public void run() { 90 Runnable runnable = new Runnable() { 91 public void run() { 92 System.err.println("Dummy from pop"); 93 System.err.flush(); 94 } 95 }; 96 InvocationEvent ie = new InvocationEvent(MyEventQueue2.this, runnable, null, false); 97 SunToolkit.postEvent(SunToolkit.targetToAppContext(PushPopTest.frame), ie); 98 postEvent(ie); 99 } 100 }); 101 } catch (InterruptedException ie) { 102 ie.printStackTrace(); 103 } catch (java.lang.reflect.InvocationTargetException ie) { 104 ie.printStackTrace(); 105 } 106 super.pop(); 107 } 108 }