1   /*
2    * Copyright (c) 2007, 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
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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
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22   */
23  
24  /* @test
25   * @bug 6493680
26   * @summary Tests if notifications are received in expected order
27   * @author Igor Kushnirskiy
28   */
29  
30  import javax.swing.*;
31  import java.beans.*;
32  import java.util.concurrent.atomic.*;
33  import java.util.concurrent.*;
34  
35  
36  public class bug6493680 {
37      /*
38       * because timing is involved in this bug we will run the test
39       * NUMBER_OF_TRIES times.
40       * the test passes if it does not fail once.
41       */
42      private final static int NUMBER_OF_TRIES = 50;
43  
44      public static void main(String[] args) throws Exception {
45          for (int i = 0; i < NUMBER_OF_TRIES; i++) {
46              if (! (new Test()).test()) {
47                  throw new RuntimeException("failed");
48              }
49          }
50      }
51  
52      private static class Test {
53          private final AtomicInteger lastProgressValue = new AtomicInteger(-1);
54          private final Exchanger<Boolean> exchanger = new Exchanger<Boolean>();
55  
56          boolean test() throws Exception {
57              TestSwingWorker swingWorker = new TestSwingWorker();
58              swingWorker.addPropertyChangeListener(
59                  new PropertyChangeListener() {
60                      public void propertyChange(PropertyChangeEvent evt) {
61                          if ("progress" == evt.getPropertyName()) {
62                              lastProgressValue.set((Integer) evt.getNewValue());
63                          }
64                      }
65                  });
66  
67              swingWorker.execute();
68              return exchanger.exchange(true);
69          }
70  
71          private class TestSwingWorker extends SwingWorker<Void, Void> {
72              @Override
73              protected Void doInBackground() throws Exception {
74                  for (int i = 0; i <= 100; i++) {
75                      Thread.sleep(1);
76                      setProgress(i);
77                  }
78                  return null;
79              }
80              @Override
81              protected void done() {
82                  boolean isPassed = (lastProgressValue.get() == 100);
83                  try {
84                      exchanger.exchange(isPassed);
85                  } catch (Exception ingore) {
86                  }
87              }
88          }
89      }
90  
91  }