8340073: Support "%z" time zone abbreviation format in TZ files

[johnyjose30]

Clean backport of https://git.openjdk.org/jdk/commit/418bb42b95b177f5f31f756054d0dd83740c6686

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8340073 needs maintainer approval

Issue

• JDK-8340073: Support "%z" time zone abbreviation format in TZ files (Enhancement - P4 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk23u.git pull/158/head:pull/158
$ git checkout pull/158

Update a local copy of the PR:
$ git checkout pull/158
$ git pull https://git.openjdk.org/jdk23u.git pull/158/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 158

View PR using the GUI difftool:
$ git pr show -t 158

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk23u/pull/158.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back johnyjose30! 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]

@johnyjose30 This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8340073: Support "%z" time zone abbreviation format in TZ files

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 12 new commits pushed to the master branch:

• d1bd5c0: 8339386: Assertion on AIX - original PC must be in the main code section of the compiled method
• 38910d8: 8341658: RISC-V: Test DateFormatProviderTest.java run timeouted
• c49ef04: 8341806: Gcc version detection failure on Alinux3
• 0be27bf: 8341688: Aarch64: Generate comments in -XX:+PrintInterpreter to link to source code
• 9fdcee9: 8332697: ubsan: shenandoahSimpleBitMap.inline.hpp:68:23: runtime error: signed integer overflow: -9223372036854775808 - 1 cannot be represented in type 'long int'
• ff109ac: 8341261: Tests assume UnlockExperimentalVMOptions is disabled by default
• 6250c5d: 8335709: C2: assert(!loop->is_member(get_loop(useblock))) failed: must be outside loop
• 5460227: 8335142: compiler/c1/TestTraceLinearScanLevel.java occasionally times out with -Xcomp
• 8915084: 8323688: C2: Fix UB of jlong overflow in PhaseIdealLoop::is_counted_loop()
• c2b5759: 8340812: LambdaForm customization via MethodHandle::updateForm is not thread safe
• ... and 2 more: https://git.openjdk.org/jdk23u/compare/e2f4c7a110d6b1edadd0c0a8fdccc9d1d924735a...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

As you do not have Committer status in this project an existing Committer must agree to sponsor your change.

➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[mlbridge]

Webrevs

• 00: Full (d842371f)

[johnyjose30]

/integrate

[openjdk]

@johnyjose30
Your change (at version d842371) is now ready to be sponsored by a Committer.

[coffeys]

/sponsor

[openjdk]

Going to push as commit f9c82e4.
Since your change was applied there have been 14 commits pushed to the master branch:

• 35290fa: 8339644: Improve parsing of Day/Month in tzdata rules
• ce81756: 8335530: Java file extension missing in AuthenticatorTest
• d1bd5c0: 8339386: Assertion on AIX - original PC must be in the main code section of the compiled method
• 38910d8: 8341658: RISC-V: Test DateFormatProviderTest.java run timeouted
• c49ef04: 8341806: Gcc version detection failure on Alinux3
• 0be27bf: 8341688: Aarch64: Generate comments in -XX:+PrintInterpreter to link to source code
• 9fdcee9: 8332697: ubsan: shenandoahSimpleBitMap.inline.hpp:68:23: runtime error: signed integer overflow: -9223372036854775808 - 1 cannot be represented in type 'long int'
• ff109ac: 8341261: Tests assume UnlockExperimentalVMOptions is disabled by default
• 6250c5d: 8335709: C2: assert(!loop->is_member(get_loop(useblock))) failed: must be outside loop
• 5460227: 8335142: compiler/c1/TestTraceLinearScanLevel.java occasionally times out with -Xcomp
• ... and 4 more: https://git.openjdk.org/jdk23u/compare/e2f4c7a110d6b1edadd0c0a8fdccc9d1d924735a...master

Your commit was automatically rebased without conflicts.

[openjdk]

@coffeys @johnyjose30 Pushed as commit f9c82e4.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.