<i18n dev> Open Jdk Timezone bug?
Andrew John Hughes
gnu_andrew at member.fsf.org
Wed Dec 2 06:53:51 PST 2009
2009/12/1 Masayoshi Okutsu <Masayoshi.Okutsu at sun.com>:
> What is the time zone ID you are using?
> On 12/1/2009 1:55 AM, Bill Tims (RSI) wrote:
>> From what I can find, this appears to be the right place to post this, if
>> I'm wrong I would appreciate a pointer to the proper location.
>> The database our app has to talk to has January 1,1900 12:00:00 am date
>> in it. When I load the value into a open
>> jdk date object (using Ubuntu/JBoss 4.2.3 GA-jdk6) I get December 31, 1899
>> 23:00:00. When I do the same thing on my
>> dev box (Win XP/Sun jre 1.6.0_07) I get January 1, 1900 12:00:00 am. I
>> wrote a test program that prints out the
>> Timezone info for 1898-1902 and it appears that the open jdk has a
>> daylight savings time starting on Jan 1, 1900 through
>> Oct 1, 1900 and the sun version doesn't. According to Wikipedia, Daylight
>> savings wasn't suggested until 1907.
>> I can't find anything on the web that suggests where the timezone info is
>> kept or how complicated it will be to rebuild whatever jar
>> file is required. Can someone point me to the proper source file and
>> suggest how involved building the fix will be?
>> Bill Tims
>> Renaissance Systems, Inc.
You don't give any details of the OpenJDK version - what does 'java
-version' give on your Ubuntu box?
If this is the system OpenJDK build, then it's an IcedTea build and
thus includes a patch to use the system timezone data which is likely
to be more up-to-date than that bundled with Sun's JDK.
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