1 /* 2 * Copyright (c) 2016, 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.util.ArrayList; 25 import java.util.List; 26 import java.util.TimeZone; 27 import java.util.concurrent.Callable; 28 import java.util.concurrent.ExecutionException; 29 import java.util.concurrent.ExecutorService; 30 import java.util.concurrent.Executors; 31 import java.util.concurrent.Future; 32 33 public class Bug8066652 { 34 main(String args[])35 public static void main(String args[]) { 36 ExecutorService executor = Executors.newFixedThreadPool(10); 37 Callable<TimeZone> calTimeZone = () -> TimeZone.getDefault(); 38 List<Callable<TimeZone>> tasks = new ArrayList<>(); 39 for (int j = 1; j < 10; j++) { 40 tasks.add(calTimeZone); 41 } 42 try { 43 List<Future<TimeZone>> results = executor.invokeAll(tasks); 44 for (Future<TimeZone> f : results) { 45 TimeZone tz = f.get(); 46 if (! tz.getID().equals("GMT")) { 47 throw new RuntimeException("wrong Time zone ID: " + tz.getID() 48 + ", It should be GMT"); 49 } 50 } 51 } catch (InterruptedException | ExecutionException e) { 52 throw new RuntimeException("Execution interrupted or Execution Exception occurred", e); 53 } finally { 54 executor.shutdown(); 55 } 56 } 57 } 58