[8u] [1/2] RFR backport of 8223490: Optimize search algorithm for determining default time zone

[Yuri Nesterenko]

And, overall backport looks good to me.

Thank you!

--yan

On 06.12.2019 01:54, Hohensee, Paul wrote:
> I'll push them for you.
>
> Paul
>
> On 12/5/19, 1:55 PM, "jdk8u-dev on behalf of David Alvarez" <jdk8u-dev-bounces at openjdk.java.net on behalf of alvdavi at amazon.com> wrote:
>
>     8234591 was a clean backport. Once I get the review approval for
>     8223490, I'll ensure I'll add a comment when doing the jdk8u-fix-request
>     so 8223490, 8231124 and 8234591 are all push together. I'll need a
>     commiter to push the changes for me.
>     
>     For convenience, I have a copy of the 8u patch of 8234591 [1]
>     
>     David
>     
>     --
>     [1] http://cr.openjdk.java.net/~alvdavi/patches/8234591.8u.00.patch
>     
>     On 2019-12-05 13:38, David Alvarez wrote:
>     > Thanks for catching that one, being only in 11u and not in tip in flew
>     > under my radar. I will backport it to 8 too.
>     > 
>     > David
>     > 
>     > On 2019-12-05 01:41, Yuri Nesterenko wrote:
>     >> Hi David,
>     >>
>     >> could you please consider a small change from
>     >>
>     >> https://bugs.openjdk.java.net/browse/JDK-8234591 ? 
>     >> It may be even more important for jdk8.
>     >>
>     >> Thanks,
>     >> --yan
>     >>
>     >> On 05.12.2019 01:38, David Alvarez wrote:
>     >>> Hi,
>     >>>
>     >>> I would like to request a backport of JDK-8223490.
>     >>>
>     >>> Bug: https://bugs.openjdk.java.net/browse/JDK-8223490
>     >>> Original: https://hg.openjdk.java.net/jdk/jdk/rev/8ee083465318
>     >>> Webrev: http://cr.openjdk.java.net/~alvdavi/webrevs/8223490/webrev.8u.00/
>     >>>
>     >>> The patch is marked as 8u241 but not yet in openjdk8u242.
>     >>>
>     >>> Patch did not apply cleanly, multiple modifications were required.
>     >>>
>     >>> jkd8u missing JDK-8202794 [1] meant we still had the dirent64 *entry
>     >>> around and references to readdir64_r. We also don't have JDK-7153347 [2]
>     >>> which added multiple changes to the original findZoneInfoFile method.
>     >>> Nor do we have JDK-8214077 [3] that changed statbuf to a stat64. It is
>     >>> possible these are not the only ones.
>     >>>
>     >>> This patch will be followed up by a backport of JDK-8231124 which is a
>     >>> follow up.
>     >>>
>     >>> I've run Tier1 and Tier2 tests, no regressions found. Additionally, I've
>     >>> been able to test on an affected system, where ZoneId.systemDefault()
>     >>> was returning Zulu before the patch, and UTC after.
>     >>>
>     >>> Thanks,
>     >>>
>     >>> David
>     >>>
>     >>> --
>     >>> [1] https://bugs.openjdk.java.net/browse/JDK-8202794
>     >>> [2] http://hg.openjdk.java.net/jdk10/jdk10/jdk/rev/4887534fa39b
>     >>> [3] https://bugs.openjdk.java.net/browse/JDK-8214077
>     >>> [4] https://bugs.openjdk.java.net/browse/JDK-8231124
>     >>>
>     >>>
>     >>>
>     >>>
>     >>
>     
>