1 /*
2  * Copyright (c) 2018, 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 6199320
27  * @summary Properties.store() causes deadlock when concurrently calling TimeZone apis
28  * @run main/timeout=20 StoreDeadlock
29  * @author Xueming Shen
30  */
31 
32 package test.java.util.Properties;
33 
34 import java.io.IOException;
35 import java.util.Properties;
36 import java.util.TimeZone;
37 
38 public class StoreDeadlock {
StoreDeadlock()39     public StoreDeadlock() {
40         Properties sysproperty = System.getProperties();
41         Thread1 t1 = new Thread1(sysproperty);
42         Thread2 t2 = new Thread2();
43         t1.start();
44         t2.start();
45     }
main(String[] args)46     public static void main(String[] args) {
47         StoreDeadlock deadlock = new StoreDeadlock();
48     }
49     class Thread1 extends Thread {
50         Properties sp;
Thread1(Properties p)51         public Thread1(Properties p) {
52             sp = p;
53         }
run()54         public void run() {
55             try {
56                 sp.store(System.out, null);
57             } catch (IOException e) {
58                 System.out.println("IOException : " + e);
59             }
60         }
61     }
62     class Thread2 extends Thread {
run()63         public void run() {
64             System.out.println("tz=" + TimeZone.getTimeZone("PST"));
65         }
66     }
67 }
68