[tz] [PATCH] tz-link.html: update Oracle Java tzupdater README URL
Brian.Inglis at SystematicSw.ab.ca
Sun Oct 18 05:39:41 UTC 2020
On 2020-10-17 19:02, Paul Eggert wrote:
> On 10/17/20 9:32 AM, Brian Inglis wrote:
>> Oracle Java tzupdater README URL in tz-link.html has been changed and is
>> currently being redirected; update it in case that does not continue:
> Thanks for the heads-up. Fixing this prompted me to mention the TZUpdater
> license (which I was not aware of), since that's done for most other software we
> cite. Also, I modernized the description of Oracle JDK and OpenJDK, as well as
> the Python description in the light of Python 3.9 (which if I'm not mistaken,
> makes pytz obsolescent).
> I looked into other tools for updating Java from tzdb. It's quite a zoo.
> tz-link.html currently lists ICU, Joda-Time, JTZU, ThreeTen-Extra, and Time4A
> which all appear to be active projects. It also lists the following projects,
> all links that I added in July 2019 but which I'm not as sure about today:
> * IANA Updater, intended for Liberica JDK/JRE, last updated February 2019.
> * ZIUpdater, intended for Zulu Enterprise, Zulu Community, Zulu Embedded, and
> Zing, last updated July 2019.
> * tzdbgen, a backport of some OpenJDK 8 (2014) code to OpenJDK 6 (2009), last
> updated June 2017. This no longer seems to work
> Given the above, the attached proposed patch also stops mentioning tzdbgen as it
> appears to be abandoned. I'll cc. this email to tzdbgen's author Alex
> Kashchenko, though, in case I'm wrong. If anyone knows IANA Updater and
> ZIUpdater's status, I'd appreciate the info; presumably they exist mostly
> because of TZUpdater's license but the licensing situation can be murky in this
An upgrade mentioned on the new Oracle Java Tzupdater page allows the Oracle
Java Tzupdater to update other non-Oracle JVMs using compatible tz data.
IIRC Joda time core became java.time integrated into Jave SE 8 JDK updating
calendar, tz, and DST handling; and ThreeTen Android Backport added that support
to the Google Android platform, and the core is becoming Android java.time.
[BTW: DUT1 predictions appear to keep floating around the same range for at
least another year]
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
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