Test6963811.java revision 2535:3dc686ecb4cd 
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
31import java.beans.PropertyEditorManager;
32import sun.beans.editors.StringEditor;
33
34public 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}
84