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From "Tony Wu (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HARMONY-4372) [classlib][luni] GregorianCalendar.roll() works incorrectly around end of year if MinimalDaysInFirstWeek is 4
Date Tue, 10 Jul 2007 13:45:05 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-4372?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tony Wu resolved HARMONY-4372.
------------------------------

    Resolution: Fixed

Fixed at r554942, Thanks Elena.
Please verify if the backward operation works well.

> [classlib][luni] GregorianCalendar.roll() works incorrectly around end of year if MinimalDaysInFirstWeek
is 4
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-4372
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4372
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Elena Sayapina
>            Assignee: Tony Wu
>            Priority: Minor
>
> GregorianCalendar.roll() works incorrectly around end of year if MinimalDaysInFirstWeek
is 4
> Please, consider the following code:
> import java.util.Calendar;
> import java.util.GregorianCalendar;
> import java.util.Locale;
> public class rollTest {
> 	static GregorianCalendar calendar = new GregorianCalendar(Locale.UK);
> 	static GregorianCalendar pattern = new GregorianCalendar(Locale.UK);
> 	
> 	public static void main(String[] args) {
> 	    calendar.set(1994, 11, 30, 0, 0, 0);
> 	    pattern.set(1994, 0, 7, 0, 0, 0);
> 	    System.out.println("MinimalDaysInFirstWeek: " + calendar.getMinimalDaysInFirstWeek());
> 	    System.out.println("Initial date: " + calendar.getTime());
> 	    calendar.roll(Calendar.WEEK_OF_YEAR, true);
> 	    System.out.println("Roll ahead by WEEK_OF_YEAR: " + calendar.getTime());
> 	    if (calendar.equals(pattern)) System.out.println("TEST PASSED");
> 	    else System.out.println("TEST FAILED");
> 	}
> }
> Output on Harmony-r553727:
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or
its licensors,
> as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r553727, (Jul  6 2007), Windows/ia32/msvc 1310, release build
> http://harmony.apache.org
> MinimalDaysInFirstWeek: 4
> Initial date: Fri Dec 30 00:00:00 NOVT 1994
> Roll ahead by  WEEK_OF_YEAR: Sat Dec 31 00:00:00 NOVT 1994
> TEST FAILED
> Output on RI:
> java version "1.5.0_11"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_11-b03)
> Java HotSpot(TM) Client VM (build 1.5.0_11-b03, mixed mode)
> MinimalDaysInFirstWeek: 4
> Initial date: Fri Dec 30 00:00:00 NOVT 1994
> Roll ahead by WEEK_OF_YEAR: Fri Jan 07 00:00:00 NOVT 1994
> TEST PASSED

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