RFR: 8342886: Update MET timezone in TimeZoneNames files [v2]

[Naoto Sato]

On Tue, 29 Apr 2025 16:15:05 GMT, Gautham Krishnan <duke at openjdk.org> wrote:

>> MET timezone entry in TimeZoneNames.java and TimeZoneNames_*.java needs to be updated as MET is alias to Europe/Brussels as per 2024b tzdata changes.
>> 
>> Also Bug4848242.java needs to be removed as the test expects all euro locale time zones should have the same short names.
>
> Gautham Krishnan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Bringing back  Bug4848242.java
>   
>   Reverting the change to delete Bug4848242.java  as it is still worth testing, with comments adjusted.

Thanks for bringing back the test case. Please add the bug id [8342886](https://bugs.openjdk.org/browse/JDK-8342886) in the test header.

test/jdk/sun/util/resources/TimeZone/Bug4848242.java line 31:

> 29:  *         but due to changes in time zone data and locale handling, that is no longer guaranteed.
> 30:  *         This test now verifies that a representative sample of locales (e.g., DE, FR, IT)
> 31:  *         still use the same short names (CET/CEST).

I think German is not in the samples here (it will not return "CET"/"CEST"). Also please use lowercase for the language, eg, fr/it, uppwercased letters are usually for regions.

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PR Review: https://git.openjdk.org/jdk/pull/24871#pullrequestreview-2804305540
PR Review Comment: https://git.openjdk.org/jdk/pull/24871#discussion_r2066932598