[11u] RFR: JDK-8254177: (tz) Upgrade time-zone data to tzdata2020b

[Yuri Nesterenko]

But Andrew, even Oracle has it with fixVersion = 11.0.10-oracle
which is January. Take pity on us! Only six days before release,
and all the builds must be tested and vetted and --
otherwise, as A. Shipilev rightly says,

artifacts "may contain horrible bugs that could lead to data corruption, engulfing machines in flames,
selling your firstborns at eBay, etc."

--yan

On 14.10.2020 20:09, Andrew Hughes wrote:
> Bug: https://bugs.openjdk.java.net/browse/JDK-8254177
> Webrev: https://cr.openjdk.java.net/~andrew/openjdk11/8254177/webrev.01/
> 
> This updates OpenJDK 11 to the latest tzdata release, which was released
> last week. The backport mostly applies cleanly, with the following
> exceptions:
> 
> * make/modules/java.base/gendata/GendataTZDB.gmk in 16u =>
>   make/gendata/GendataTZDB.gmk
> 
> * The rule change in test/jdk/java/time/test/java/time/zone/TestZoneRules.java
>   had to be applied manually, as 11u does not contain JDK-8239836, which introduces
>   the OFF_x shorthand for ZoneOffset.ofHours(x)
> 
> Tests in test/jdk/sun/util/calendar & test/jdk/java/time/test all pass
> with this update.
> 
> I intend to include this with the CPU bundle once reviewed.
> 
> Note that this removes the US/Pacific-New zone, which has been long
> obsolete and never actually came into effect:
> 
> https://bugs.openjdk.java.net/browse/JDK-8254679
> 
> Thanks,
>