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/*
* Copyright (c) 1998, 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 4028518
* @summary Make sure cloned GregorianCalendar is unchanged by modifying its original.
*/
import java.util.GregorianCalendar ;
import static java.util.Calendar.*;
public class bug4028518 {
public static void main(String[] args)
{
GregorianCalendar cal1 = new GregorianCalendar() ;
GregorianCalendar cal2 = (GregorianCalendar) cal1.clone() ;
printdate(cal1, "cal1: ") ;
printdate(cal2, "cal2 - cloned(): ") ;
cal1.add(DAY_OF_MONTH, 1) ;
printdate(cal1, "cal1 after adding 1 day: ") ;
printdate(cal2, "cal2 should be unmodified: ") ;
if (cal1.get(DAY_OF_MONTH) == cal2.get(DAY_OF_MONTH)) {
throw new RuntimeException("cloned GregorianCalendar modified");
}
}
private static void printdate(GregorianCalendar cal, String string)
{
System.out.println(string + (cal.get(MONTH) + 1)
+ "/" + cal.get(DAY_OF_MONTH)
+ "/" + cal.get(YEAR)) ;
}
}
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