254 lines
8.5 KiB
Java
254 lines
8.5 KiB
Java
/*
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* Copyright (c) 2005, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6231602
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* @summary Make sure that ZONE_OFFSET and/or DST_OFFSET setting is
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* taken into account for time calculations.
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*/
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import java.util.Calendar;
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import java.util.Date;
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import java.util.GregorianCalendar;
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import java.util.Locale;
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import java.util.TimeZone;
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import static java.util.GregorianCalendar.*;
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public class ZoneOffsets {
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// This TimeZone always returns the dstOffset value.
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@SuppressWarnings("serial")
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private static class TestTimeZone extends TimeZone {
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private int gmtOffset;
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private int dstOffset;
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TestTimeZone(int gmtOffset, String id, int dstOffset) {
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this.gmtOffset = gmtOffset;
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setID(id);
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this.dstOffset = dstOffset;
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}
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public int getOffset(int era, int year, int month, int day,
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int dayOfWeek, int milliseconds) {
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return gmtOffset + dstOffset;
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}
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public int getOffset(long date) {
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return gmtOffset + dstOffset;
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}
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public void setRawOffset(int offsetMillis) {
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gmtOffset = offsetMillis;
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}
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public int getRawOffset() {
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return gmtOffset;
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}
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public int getDSTSavings() {
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return dstOffset;
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}
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public boolean useDaylightTime() {
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return dstOffset != 0;
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}
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public boolean inDaylightTime(Date date) {
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return dstOffset != 0;
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}
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public String toString() {
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return "TestTimeZone[" + getID() + ", " + gmtOffset + ", " + dstOffset + "]";
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}
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}
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private static Locale[] locales = {
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Locale.getDefault(),
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Locale.of("th", "TH"),
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Locale.of("ja", "JP", "JP")};
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private static final int HOUR = 60 * 60 * 1000;
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private static int[][] offsets = {
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{0, 0},
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{0, HOUR},
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{0, 2 * HOUR},
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{-8 * HOUR, 0},
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{-8 * HOUR, HOUR},
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{-8 * HOUR, 2 * HOUR},
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{9 * HOUR, 0},
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{9 * HOUR, HOUR},
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{9 * HOUR, 2 * HOUR}};
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public static void main(String[] args) {
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for (int l = 0; l < locales.length; l++) {
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Locale loc = locales[l];
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for (int i = 0; i < offsets.length; i++) {
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test(loc, offsets[i][0], offsets[i][1]);
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}
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}
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// The test case in the bug report.
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GregorianCalendar cal = new GregorianCalendar();
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cal.setLenient(false);
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cal.setGregorianChange(new Date(Long.MIN_VALUE));
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cal.clear();
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cal.set(ZONE_OFFSET, 0);
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cal.set(DST_OFFSET, 0);
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cal.set(ERA, AD);
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cal.set(2004, FEBRUARY, 3, 0, 0, 0);
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cal.set(MILLISECOND, 0);
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// The following line should not throw an IllegalArgumentException.
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cal.getTime();
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}
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private static void test(Locale loc, int gmtOffset, int dstOffset) {
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TimeZone tz1 = new TestTimeZone(gmtOffset,
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"GMT" + (gmtOffset / HOUR) + "." + (dstOffset / HOUR),
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dstOffset);
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int someDifferentOffset = gmtOffset + 2 * HOUR;
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TimeZone tz2 = new TestTimeZone(someDifferentOffset,
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"GMT" + (someDifferentOffset / HOUR) + "." + (dstOffset / HOUR),
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dstOffset);
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int someDifferentDSTOffset = dstOffset == 2 * HOUR ? HOUR : dstOffset + HOUR;
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TimeZone tz3 = new TestTimeZone(gmtOffset,
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"GMT" + (gmtOffset / HOUR) + "." + (someDifferentDSTOffset / HOUR),
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someDifferentDSTOffset);
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// cal1 is the base line.
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Calendar cal1 = Calendar.getInstance(tz1, loc);
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cal1.clear();
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cal1.set(2005, MARCH, 11);
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long t1 = cal1.getTime().getTime();
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int gmt = cal1.get(ZONE_OFFSET);
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int dst = cal1.get(DST_OFFSET);
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// Test 8 cases with cal2.
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Calendar cal2 = Calendar.getInstance(tz2, loc);
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cal2.clear();
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cal2.set(2005, MARCH, 11);
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// test1: set only ZONE_OFFSET
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cal2.set(ZONE_OFFSET, gmtOffset);
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if (t1 != cal2.getTime().getTime() || dst != cal2.get(DST_OFFSET)) {
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error("Test1", loc, cal2, gmtOffset, dstOffset, t1);
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}
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cal2.setTimeZone(tz3);
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cal2.clear();
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cal2.set(2005, MARCH, 11);
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// test2: set only DST_OFFSET
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cal2.set(DST_OFFSET, dstOffset);
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if (t1 != cal2.getTime().getTime() || gmt != cal2.get(ZONE_OFFSET)) {
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error("Test2", loc, cal2, gmtOffset, dstOffset, t1);
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}
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cal2.setTimeZone(tz2);
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cal2.clear();
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cal2.set(2005, MARCH, 11);
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// test3: set both ZONE_OFFSET and DST_OFFSET
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cal2.set(ZONE_OFFSET, gmtOffset);
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cal2.set(DST_OFFSET, dstOffset);
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if (t1 != cal2.getTime().getTime()) {
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error("Test3", loc, cal2, gmtOffset, dstOffset, t1);
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}
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cal2.setTimeZone(tz3);
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cal2.clear();
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cal2.set(2005, MARCH, 11);
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// test4: set both ZONE_OFFSET and DST_OFFSET
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cal2.set(ZONE_OFFSET, gmtOffset);
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cal2.set(DST_OFFSET, dstOffset);
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if (t1 != cal2.getTime().getTime()) {
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error("Test4", loc, cal2, gmtOffset, dstOffset, t1);
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}
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// Test the same thing in non-lenient
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cal2.setLenient(false);
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cal2.setTimeZone(tz2);
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cal2.clear();
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cal2.set(2005, MARCH, 11);
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adjustJapaneseEra(cal2);
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// test5: set only ZONE_OFFSET in non-lenient
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cal2.set(ZONE_OFFSET, gmtOffset);
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if (t1 != cal2.getTime().getTime() || dst != cal2.get(DST_OFFSET)) {
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error("Test5", loc, cal2, gmtOffset, dstOffset, t1);
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}
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cal2.setTimeZone(tz3);
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cal2.clear();
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cal2.set(2005, MARCH, 11);
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adjustJapaneseEra(cal2);
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// test6: set only DST_OFFSET in non-lenient
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cal2.set(DST_OFFSET, dstOffset);
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if (t1 != cal2.getTime().getTime() || gmt != cal2.get(ZONE_OFFSET)) {
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error("Test6", loc, cal2, gmtOffset, dstOffset, t1);
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}
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cal2.setTimeZone(tz2);
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cal2.clear();
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cal2.set(2005, MARCH, 11);
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adjustJapaneseEra(cal2);
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// test7: set both ZONE_OFFSET and DST_OFFSET in non-lenient
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cal2.set(ZONE_OFFSET, gmtOffset);
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cal2.set(DST_OFFSET, dstOffset);
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if (t1 != cal2.getTime().getTime()) {
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error("Test7", loc, cal2, gmtOffset, dstOffset, t1);
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}
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cal2.setTimeZone(tz3);
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cal2.clear();
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cal2.set(2005, MARCH, 11);
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adjustJapaneseEra(cal2);
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// test8: set both ZONE_OFFSET and DST_OFFSET in non-lenient
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cal2.set(ZONE_OFFSET, gmtOffset);
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cal2.set(DST_OFFSET, dstOffset);
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if (t1 != cal2.getTime().getTime()) {
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error("Test8", loc, cal2, gmtOffset, dstOffset, t1);
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}
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}
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private static void error(String msg, Locale loc, Calendar cal2, int gmtOffset, int dstOffset, long t1) {
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System.err.println(cal2);
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throw new RuntimeException(msg + ": Locale=" + loc
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+ ", gmtOffset=" + gmtOffset + ", dstOffset=" + dstOffset
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+ ", cal1 time=" + t1 + ", cal2 time=" + cal2.getTime().getTime());
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}
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private static void adjustJapaneseEra(Calendar cal) {
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// In case of Japanese calendar, explicitly set the last era; REIWA so that
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// year 2005 won't throw exception
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if (!cal.isLenient() &&
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cal.getCalendarType().equals("japanese") &&
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System.currentTimeMillis() < 1556668800000L) { // Current time not in REIWA
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cal.set(Calendar.ERA, 5);
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cal.add(Calendar.YEAR, -30); // -30: Subtract year-length of HEISEI era
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}
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return;
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}
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}
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