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 }