8350816: [8u] Update TzdbZoneRulesCompiler to ignore HST/EST/MST links

[dimitryc]

This is 8u-specific issue. It's a prerequisite for backport of 2024b (JDK-8339637) as backporting 2024b to 8u as is leads to the following failure

java.lang.IllegalArgumentException: Unknown region: HST
at build.tools.tzdb.TzdbZoneRulesCompiler.findRegionIndex(TzdbZoneRulesCompiler.java:290)
at build.tools.tzdb.TzdbZoneRulesCompiler.outputFile(TzdbZoneRulesCompiler.java:259)
at build.tools.tzdb.TzdbZoneRulesCompiler.compile(TzdbZoneRulesCompiler.java:193)
at build.tools.tzdb.TzdbZoneRulesCompiler.main(TzdbZoneRulesCompiler.java:91)

JDK-8042369 updated the compiler to ignore HST/EST/MST links in 9+ (https://hg.openjdk.org/jdk9/jdk9/jdk/rev/6c26f18d9bc0#l8.139) so the failure didn't appear with backports of 2024b to 11+

The patch changes the compiler in 8u to ignore HST/EST/MST links and work in the same way as it works for 11+

Testing: all relevant tests passed (java/text/Format java/util/TimeZone sun/util/calendar sun/util/resources)

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8350816 needs maintainer approval

Issue

• JDK-8350816: [8u] Update TzdbZoneRulesCompiler to ignore HST/EST/MST links (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk8u-dev.git pull/630/head:pull/630
$ git checkout pull/630

Update a local copy of the PR:
$ git checkout pull/630
$ git pull https://git.openjdk.org/jdk8u-dev.git pull/630/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 630

View PR using the GUI difftool:
$ git pr show -t 630

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk8u-dev/pull/630.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back dcherepanov! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[mlbridge]

Webrevs

• 00: Full (61a33e5a)