1 /*

     2  * Copyright (c) 2010, 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  * @bug 6963811

    27  * @summary Tests deadlock in PropertyEditorManager

    28  * @author Sergey Malenkov

    29  */

    30 

    31 import java.beans.PropertyEditorManager;

    32 import sun.beans.editors.StringEditor;

    33 

    34 public class Test6963811 implements Runnable {

    35     private final long time;

    36     private final boolean sync;

    37 

    38     public Test6963811(long time, boolean sync) {

    39         this.time = time;

    40         this.sync = sync;

    41     }

    42 

    43     public void run() {

    44         try {

    45             Thread.sleep(this.time); // increase the chance of the deadlock

    46             if (this.sync) {

    47                 synchronized (Test6963811.class) {

    48                     PropertyEditorManager.findEditor(Super.class);

    49                 }

    50             }

    51             else {

    52                 PropertyEditorManager.findEditor(Sub.class);

    53             }

    54         }

    55         catch (Exception exception) {

    56             exception.printStackTrace();

    57         }

    58     }

    59 

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

    61         Thread[] threads = new Thread[2];

    62         for (int i = 0; i < threads.length; i++) {

    63             threads[i] = new Thread(new Test6963811(0L, i > 0));

    64             threads[i].start();

    65             Thread.sleep(500L); // increase the chance of the deadlock

    66         }

    67         for (Thread thread : threads) {

    68             thread.join();

    69         }

    70     }

    71 

    72     public static class Super {

    73     }

    74 

    75     public static class Sub extends Super {

    76     }

    77 

    78     public static class SubEditor extends StringEditor {

    79         public SubEditor() {

    80             new Test6963811(1000L, true).run();

    81         }

    82     }

    83 }