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 6989440

    27  * @summary Verify ConcurrentModificationException is not thrown with multiple

    28  *     thread accesses.

    29  * @compile -XDignore.symbol.file=true Bug6989440.java

    30  * @run main Bug6989440

    31  */

    32 import java.text.spi.DateFormatProvider;

    33 import java.util.spi.LocaleNameProvider;

    34 import java.util.spi.LocaleServiceProvider;

    35 import java.util.spi.TimeZoneNameProvider;

    36 

    37 import sun.util.LocaleServiceProviderPool;

    38 

    39 public class Bug6989440 {

    40     public static void main(String[] args) {

    41         TestThread t1 = new TestThread(LocaleNameProvider.class);

    42         TestThread t2 = new TestThread(TimeZoneNameProvider.class);

    43         TestThread t3 = new TestThread(DateFormatProvider.class);

    44 

    45         t1.start();

    46         t2.start();

    47         t3.start();

    48     }

    49 

    50     static class TestThread extends Thread {

    51         private Class<? extends LocaleServiceProvider> cls;

    52 

    53         public TestThread(Class<? extends LocaleServiceProvider> providerClass) {

    54             cls = providerClass;

    55         }

    56 

    57         public void run() {

    58             LocaleServiceProviderPool pool = LocaleServiceProviderPool.getPool(cls);

    59             pool.getAvailableLocales();

    60         }

    61     }

    62 }