/*
* Copyright ( c ) 2004 , 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 .
*
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*/
/*
* @ test
* @ bug 5097350
* @ summary Make sure that TimeZone . getTimeZone returns a clone of a cached TimeZone instance .
*/
import java.util.*;
import java.text.*;
public class Bug5097350 {
public static void main(String[] args) {
String[] tzids = TimeZone.getAvailableIDs();
List<String> ids = new ArrayList<>(tzids.length + 10 );
ids.addAll(Arrays.asList(tzids));
// add some custom ids
ids.add("GMT+1" );
ids.add("GMT-7:00" );
ids.add("GMT+10:20" );
ids.add("GMT-00:00" );
ids.add("GMT+00:00" );
for (String id : ids) {
test(id);
}
}
private static void test(String id) {
TimeZone tz1 = TimeZone.getTimeZone(id);
int offset1 = tz1.getRawOffset();
tz1.setRawOffset(offset1 + 13 * 60 * 60 * 1000 );
TimeZone tz2 = TimeZone.getTimeZone(id);
if (tz1 == tz2) {
throw new RuntimeException("TimeZones are identical: " + id);
}
if (offset1 != tz2.getRawOffset()) {
throw new RuntimeException("Offset changed through aliasing: " + id);
}
}
}
Messung V0.5 in Prozent C=96 H=90 G=93
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-09-29)
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