8317264: Pattern.Bound has static fields that should be static final.

[fandreuz]

Clean backport of JDK-8317264. The fields are never assigned after initialization. final leads to shorter bytecode. It's a minor performance optimization in Regex.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8317264 needs maintainer approval

Error

 ⚠️ OCA signatory status must be verified

Warning

 ⚠️ Found trailing period in issue title for 8317264: Pattern.Bound has staticfields that should bestatic final.

Issue

• JDK-8317264: Pattern.Bound has static fields that should be static final. (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u-dev.git pull/1622/head:pull/1622
$ git checkout pull/1622

Update a local copy of the PR:
$ git checkout pull/1622
$ git pull https://git.openjdk.org/jdk21u-dev.git pull/1622/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 1622

View PR using the GUI difftool:
$ git pr show -t 1622

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk21u-dev/pull/1622.diff

[bridgekeeper]

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[openjdk]

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

[fandreuz]

/covered

[bridgekeeper]

Thank you! Please allow for a few business days to verify that your employer has signed the OCA. Also, please note that pull requests that are pending an OCA check will not usually be evaluated, so your patience is appreciated!

[openjdk]

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

[openjdk]

@fandreuz Please do not rebase or force-push to an active PR as it invalidates existing review comments. Note for future reference, the bots always squash all changes into a single commit automatically as part of the integration. See OpenJDK Developers’ Guide for more information.

[phohensee]

I can confirm that @fandreuz is an Amazon employee and covered by the OCA.