| /* |
| * Copyright (c) 2011, 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 6772689 |
| * @summary Test for standard-to-daylight transitions at midnight: |
| * date stays on the given day. |
| */ |
| |
| import java.util.Calendar; |
| import java.util.Date; |
| import java.util.GregorianCalendar; |
| import java.util.TimeZone; |
| import static java.util.GregorianCalendar.*; |
| |
| public class Bug6772689 { |
| private static final int BEGIN_YEAR = 2035; |
| private static final int END_YEAR = BEGIN_YEAR + 28; |
| |
| public static void main(String[] args) { |
| TimeZone defaultTimeZone = TimeZone.getDefault(); |
| int errors = 0; |
| |
| Calendar cal = new GregorianCalendar(BEGIN_YEAR, MARCH, 1); |
| String[] tzids = TimeZone.getAvailableIDs(); |
| try { |
| for (String id : tzids) { |
| TimeZone tz = TimeZone.getTimeZone(id); |
| if (!tz.useDaylightTime()) { |
| continue; |
| } |
| TimeZone.setDefault(tz); |
| |
| dateloop: |
| // Use future dates because sun.util.calendar.ZoneInfo |
| // delegates offset transition calculations to a SimpleTimeZone |
| // (after 2038 as of JDK7). |
| for (int year = BEGIN_YEAR; year < END_YEAR; year++) { |
| for (int month = MARCH; month <= NOVEMBER; month++) { |
| cal.set(year, month, 1, 15, 0, 0); |
| int maxDom = cal.getActualMaximum(DAY_OF_MONTH); |
| for (int dom = 1; dom <= maxDom; dom++) { |
| Date date = new Date(year - 1900, month, dom); |
| if (date.getYear()+1900 != year |
| || date.getMonth() != month |
| || date.getDate() != dom) { |
| System.err.printf("%s: got %04d-%02d-%02d, expected %04d-%02d-%02d%n", |
| id, |
| date.getYear() + 1900, |
| date.getMonth() + 1, |
| date.getDate(), |
| year, |
| month + 1, |
| dom); |
| errors++; |
| break dateloop; |
| } |
| } |
| } |
| } |
| } |
| } finally { |
| // Restore the default TimeZone. |
| TimeZone.setDefault(defaultTimeZone); |
| } |
| if (errors > 0) { |
| throw new RuntimeException("Transition test failed"); |
| } |
| } |
| } |