8367772: Refactor createUI in PassFailJFrame

[rm-gh-8]

Backporting JDK-8367772: Refactor createUI in PassFailJFrame.

This PR refactors PassFailJFrame UI creation to use Builder pattern internally, eliminating parameter proliferation and code duplication.

For parity with Oracle JDK.

Ran related tests on linux-x64, linux-aarch64, macos-aarch64 and windows-x64:

make test TEST=test/jdk/java/awt/regtesthelpers/PassFailJFrame.java

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8367772 needs maintainer approval

Issue

• JDK-8367772: Refactor createUI in PassFailJFrame (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk25u-dev.git pull/250/head:pull/250
$ git checkout pull/250

Update a local copy of the PR:
$ git checkout pull/250
$ git pull https://git.openjdk.org/jdk25u-dev.git pull/250/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 250

View PR using the GUI difftool:
$ git pr show -t 250

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk25u-dev/pull/250.diff

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[openjdk]

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

[openjdk]

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