<i18n dev> Using system tzdata

Masayoshi Okutsu Masayoshi.Okutsu at Sun.COM
Tue Jan 29 16:20:03 PST 2008

Tzdata for Java does have the Olson version information (eg, 
tzdata2007k), but I don't think the OS tzdata has it. But I don't know 
what Java should do if it was possible to check OS tzdata version. Can 
you elaborate your suggestion a bit more?


On 1/30/2008 8:51 AM, Martin Buchholz wrote:
> Dalibor Topic wrote:
>> Masayoshi Okutsu wrote:
>> From the POV of operating system distributors that already need to
>> support tzdata for other applications, and therefore need to keep it
>> current anyway for their customers, I think it's preferable to rely on
>> system facilities where such facilities exist, than to have to push a
>> separate patch for the Java runtime.
> Perhaps the best behavior is to check whether the system database is
> at least as up to date as the Java database.  Could Java know
> about the "last" change to its own database, query the OS as to whether
> it "knows about" this specific change, and if so, defer to it?
> Martin
>> cheers,
>> dalibor topic

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