From owner-freebsd-java@FreeBSD.ORG  Mon May 29 15:26:13 2006
Return-Path: <owner-freebsd-java@FreeBSD.ORG>
X-Original-To: freebsd-java@freebsd.org
Delivered-To: freebsd-java@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 32AD316A699
	for <freebsd-java@freebsd.org>; Mon, 29 May 2006 15:26:13 +0000 (UTC)
	(envelope-from java@wecos.de)
Received: from mail.terminmarktwelt.de (mail.terminmarktwelt.de [217.6.66.203])
	by mx1.FreeBSD.org (Postfix) with SMTP id 215F143D4C
	for <freebsd-java@freebsd.org>; Mon, 29 May 2006 15:26:11 +0000 (GMT)
	(envelope-from java@wecos.de)
Received: (qmail 59138 invoked by uid 98); 29 May 2006 17:19:29 +0200
Received: from 192.168.168.242 by mail.terminmarktwelt.de (envelope-from
	<java@wecos.de>, uid 82) with qmail-scanner-1.25 ( 
	Clear:RC:1(192.168.168.242):. 
	Processed in 0.250325 secs); 29 May 2006 15:19:29 -0000
X-Qmail-Scanner-Mail-From: java@wecos.de via mail.terminmarktwelt.de
X-Qmail-Scanner: 1.25 (Clear:RC:1(192.168.168.242):. Processed in 0.250325
	secs)
Received: from unknown (HELO cosinus.terminmarktwelt.de) (192.168.168.242)
	by 192.168.168.203 with SMTP; 29 May 2006 17:19:28 +0200
From: Heiko Weber <java@wecos.de>
Organization: Wecos
To: freebsd-java@freebsd.org
Date: Mon, 29 May 2006 17:20:19 +0200
User-Agent: KMail/1.8.2
MIME-Version: 1.0
Content-Type: text/plain;
  charset="us-ascii"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200605291720.19793.java@wecos.de>
Subject: Calendar Question - maybe bug ?
X-BeenThere: freebsd-java@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Porting Java to FreeBSD <freebsd-java.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-java>,
	<mailto:freebsd-java-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-java>
List-Post: <mailto:freebsd-java@freebsd.org>
List-Help: <mailto:freebsd-java-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-java>,
	<mailto:freebsd-java-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 29 May 2006 15:26:17 -0000

Hi !

I've a problem with GregorianCalendar, which returns different weeks (in year) 
on FreeBSD 6.1, java version is

# java -version
Java HotSpot(TM) Server VM (build 1.5.0-p2-heiko_03_jan_2006_23_51, mixed 
mode)

Test program (A.java):

import java.util.Calendar;
import java.util.GregorianCalendar;

public class A {
public static int weeksInYear(int year) {
                Calendar cal = GregorianCalendar.getInstance();

                cal.set(year, 11, 31);

                return cal.get(Calendar.WEEK_OF_YEAR) == 53 ? 53 : 52;
        }

        public static void main(String args[]) {
                for (int i = 1990; i <= 2006; i++)
                        System.out.println("Weeks in Year " + i + " = " + 
weeksInYear(i));
        }
}

Output on a Linux or Windows JRE is:

Weeks in Year 1990 = 52
Weeks in Year 1991 = 52
Weeks in Year 1992 = 53
Weeks in Year 1993 = 52
Weeks in Year 1994 = 52
Weeks in Year 1995 = 52
Weeks in Year 1996 = 52
Weeks in Year 1997 = 52
Weeks in Year 1998 = 53
Weeks in Year 1999 = 52
Weeks in Year 2000 = 52
Weeks in Year 2001 = 52
Weeks in Year 2002 = 52
Weeks in Year 2003 = 52
Weeks in Year 2004 = 53
Weeks in Year 2005 = 52
Weeks in Year 2006 = 52

Output on FreeBSD is:

Weeks in Year 1990 = 52
Weeks in Year 1991 = 52
Weeks in Year 1992 = 52
Weeks in Year 1993 = 52
Weeks in Year 1994 = 53
Weeks in Year 1995 = 52
Weeks in Year 1996 = 52
Weeks in Year 1997 = 52
Weeks in Year 1998 = 52
Weeks in Year 1999 = 52
Weeks in Year 2000 = 52
Weeks in Year 2001 = 52
Weeks in Year 2002 = 52
Weeks in Year 2003 = 52
Weeks in Year 2004 = 52
Weeks in Year 2005 = 53
Weeks in Year 2006 = 52

Is this my fault or would it help to update the FreeBSD JRE ? Or is the 
java-Calendar-System build up on some local (changeable) settings ?

Thanks for any help or hint.

Heiko