1 /*

     2  * Copyright 2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    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 }