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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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* under the terms of the GNU General Public License version 2 only , as
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*
* 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 ) .
*
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* 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 4514831
* @ summary Confirm that GregorianCalendar . roll ( ) works properly during transition from Daylight Saving Time to Standard Time .
*/
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.TimeZone;
import static java.util.GregorianCalendar.*;
public class bug4514831 {
public static void main(String[] args) {
Locale savedLocale = Locale.getDefault();
TimeZone savedTimeZone = TimeZone.getDefault();
boolean err = false ;
String golden_data1 = "27-28 28-29 29-30 30-31 31-1 1-2 2-3 " ;
String golden_data2 = "27-28 28-29 29-30 30-31 31-25 25-26 26-27 " ;
String golden_data3 = "1-8 8-15 15-22 22-29 29-1 1-8 8-15 " ;
try {
Locale.setDefault(Locale.US);
TimeZone.setDefault(TimeZone.getTimeZone("US/Pacific" ));
String test_roll = "" ;
GregorianCalendar c_roll = new GregorianCalendar(2001 , OCTOBER, 27 );
for (int i = 0 ; i < 7 ; i++) {
test_roll += c_roll.get(DAY_OF_MONTH) + "-" ;
c_roll.roll(DAY_OF_YEAR, true );
test_roll += c_roll.get(DAY_OF_MONTH) + " " ;
}
if (!test_roll.equals(golden_data1)) {
err = true ;
System.err.println("Wrong roll(DAY_OF_YEAR) transition: got "
+ test_roll + "expected " + golden_data1);
}
test_roll = "" ;
c_roll = new GregorianCalendar(2001 , OCTOBER, 27 );
c_roll.setFirstDayOfWeek(THURSDAY);
for (int i = 0 ; i < 7 ; i++) {
test_roll += c_roll.get(DAY_OF_MONTH) + "-" ;
c_roll.roll(DAY_OF_WEEK, true );
test_roll += c_roll.get(DAY_OF_MONTH) + " " ;
}
if (!test_roll.equals(golden_data2)) {
err = true ;
System.err.println("Wrong roll(DAY_OF_WEEK) transition: got "
+ test_roll + "expected " + golden_data2);
}
test_roll = "" ;
c_roll = new GregorianCalendar(2001 , OCTOBER, 1 );
for (int i = 0 ; i < 7 ; i++) {
test_roll += c_roll.get(DAY_OF_MONTH) + "-" ;
c_roll.roll(DAY_OF_WEEK_IN_MONTH, true );
test_roll += c_roll.get(DAY_OF_MONTH) + " " ;
}
if (!test_roll.equals(golden_data3)) {
err = true ;
System.err.println("Wrong roll(DAY_OF_WEEK_IN_MONTH) transition: got "
+ test_roll + "expected " + golden_data3);
}
} finally {
Locale.setDefault(savedLocale);
TimeZone.setDefault(savedTimeZone);
}
if (err) {
throw new RuntimeException("Wrong roll() transition" );
}
}
}
Messung V0.5 in Prozent C=94 H=90 G=91
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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