| /* |
| * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @bug 4407042 |
| * @summary Make sure that cloned SimpleDateFormat objects work |
| * independently in multiple threads. |
| * @run main Bug4407042 10 |
| */ |
| |
| import java.io.*; |
| import java.text.*; |
| import java.util.*; |
| |
| // Usage: java Bug4407042 [duration] |
| public class Bug4407042 { |
| |
| static final String TIME_STRING = "2000/11/18 00:01:00"; |
| static final long UTC_LONG = 974534460000L; |
| static SimpleDateFormat masterFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); |
| static boolean runrun = true; |
| static int duration = 100; |
| |
| void test() { |
| Locale locale = Locale.getDefault(); |
| if (locale.equals(new Locale("th", "TH")) || |
| locale.equals(new Locale("hi", "IN"))) { |
| return; |
| } |
| |
| masterFormat.setTimeZone(TimeZone.getTimeZone("America/Los_Angeles")); |
| DateParseThread d1 = new DateParseThread(); |
| DateFormatThread d2 = new DateFormatThread(); |
| d1.start(); |
| d2.start(); |
| int n = Thread.activeCount(); |
| boolean failed = false; |
| |
| for (int i = 0; i < duration; i++) { |
| try { |
| Thread.sleep(1000); |
| if (Thread.activeCount() != n) { |
| failed = true; |
| break; |
| } |
| } catch (InterruptedException e) { |
| } |
| } |
| runrun = false; |
| try { |
| d1.join(); |
| d2.join(); |
| } catch (InterruptedException e) { |
| } |
| if (failed) { |
| throw new RuntimeException("Failed"); |
| } |
| } |
| |
| synchronized static SimpleDateFormat getFormatter() { |
| return (SimpleDateFormat) masterFormat.clone(); |
| } |
| |
| static class DateParseThread extends Thread { |
| public void run() { |
| SimpleDateFormat sdf = getFormatter(); |
| Calendar cal = null; |
| |
| try { |
| int i = 0; |
| while (runrun) { |
| Date date =sdf.parse(TIME_STRING); |
| long t = date.getTime(); |
| i++; |
| if (t != UTC_LONG) { |
| throw new RuntimeException("Parse Error: " + i + |
| " (" + sdf.format(date) + ") " + t + |
| " != " + UTC_LONG); |
| } |
| } |
| } catch (ParseException e) { |
| e.printStackTrace(); |
| throw new RuntimeException("Parse Error"); |
| } |
| } |
| } |
| |
| static class DateFormatThread extends Thread { |
| public void run () { |
| SimpleDateFormat sdf = getFormatter(); |
| Calendar cal = null; |
| |
| int i = 0; |
| while (runrun) { |
| i++; |
| String s = sdf.format(new Date(UTC_LONG)); |
| if (!s.equals(TIME_STRING)) { |
| throw new RuntimeException("Format Error: " + i + " " + |
| s + " != " + TIME_STRING); |
| } |
| } |
| } |
| } |
| |
| public static void main (String[] args) { |
| if (args.length == 1) { |
| duration = Math.max(10, Integer.parseInt(args[0])); |
| } |
| new Bug4407042().test(); |
| } |
| } |