1 /*

     2  * Copyright (c) 2005, 2015, 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 import java.awt.Graphics;

    25 import java.awt.image.BufferedImage;

    26 import java.util.concurrent.CyclicBarrier;

    27 

    28 import javax.swing.JButton;

    29 import javax.swing.SwingUtilities;

    30 import javax.swing.UIManager;

    31 import javax.swing.UnsupportedLookAndFeelException;

    32 

    33 import sun.awt.AppContext;

    34 import sun.awt.SunToolkit;

    35 

    36 import static javax.swing.UIManager.getInstalledLookAndFeels;

    37 

    38 /**

    39  * @test

    40  * @bug 6190373

    41  * @summary Tests 6190373

    42  * @author Scott Violet

    43  * @modules java.desktop/sun.awt

    44  */

    45 public final class bug6190373 {

    46 

    47     private static AppContext app1;

    48     private static AppContext app2;

    49     private static final int LOOP_COUNT = 10000;

    50     private static final CyclicBarrier barrier = new CyclicBarrier(2);

    51 

    52     public static void main(final String[] args) throws Exception {

    53         final Thread t1 = new Thread(new ThreadGroup("firstGroup"), () -> {

    54             app1 = SunToolkit.createNewAppContext();

    55             test(true);

    56         });

    57         final Thread t2 = new Thread(new ThreadGroup("secondGroup"), () -> {

    58             app2 = SunToolkit.createNewAppContext();

    59             test(false);

    60         });

    61 

    62         t1.start();

    63         t2.start();

    64         t1.join();

    65         t2.join();

    66         app1.dispose();

    67         app2.dispose();

    68     }

    69 

    70     private static void test(final boolean lock) {

    71         for (final UIManager.LookAndFeelInfo laf : getInstalledLookAndFeels()) {

    72             try {

    73                 SwingUtilities.invokeAndWait(() -> setLookAndFeel(laf));

    74                 barrier.await();

    75                 SwingUtilities.invokeAndWait(() -> slam(lock));

    76                 barrier.await();

    77             } catch (final Exception e) {

    78                 throw new RuntimeException(e);

    79             }

    80         }

    81     }

    82 

    83     private static void slam(final boolean lock) {

    84         JButton button = new JButton("HI");

    85         button.setSize(100, 100);

    86         BufferedImage image = new BufferedImage(100, 100,

    87                                                 BufferedImage.TYPE_INT_RGB);

    88         for (int i = 0; i < LOOP_COUNT; i++) {

    89             Graphics g = image.getGraphics();

    90             if (lock) {

    91                 synchronized (button.getTreeLock()) {

    92                     button.paint(g);

    93                 }

    94             } else {

    95                 button.paint(g);

    96             }

    97             g.dispose();

    98         }

    99     }

   100 

   101     private static void setLookAndFeel(final UIManager.LookAndFeelInfo laf) {

   102         try {

   103             UIManager.setLookAndFeel(laf.getClassName());

   104             System.out.println("LookAndFeel: " + laf.getClassName());

   105         } catch (ClassNotFoundException | InstantiationException |

   106                 UnsupportedLookAndFeelException | IllegalAccessException e) {

   107             throw new RuntimeException(e);

   108         }

   109     }

   110 }