8352997: Open source several Swing JTabbedPane tests

[satyenme]

Backporting JDK-8352997: Open source several Swing JTabbedPane tests. Adds five Swing JTabbedPane tests. Ran GHA Sanity Checks and new tests directly. Patch is clean. Backporting for parity with Oracle.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8352997 needs maintainer approval

Issue

• JDK-8352997: Open source several Swing JTabbedPane tests (Bug - P4 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev.git pull/4044/head:pull/4044
$ git checkout pull/4044

Update a local copy of the PR:
$ git checkout pull/4044
$ git pull https://git.openjdk.org/jdk17u-dev.git pull/4044/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 4044

View PR using the GUI difftool:
$ git pr show -t 4044

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/4044.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back ssubramaniam! 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]

@satyenme 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:

8352997: Open source several Swing JTabbedPane tests

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[openjdk]

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

[openjdk]

⚠️ @satyenme This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[satyenme]

/approval request for backport of JDK-8352997: Open source several Swing JTabbedPane tests

Motivation: With this change, we provide additional test coverage without changing any functionality (so minimal risk). Change will bring openjdk closer to matching oracle.

Risk: Low. Ran GHA Sanity Checks and new manual tests. Patch is clean. Although change has only been present in tip since April, 2025, change has been accepted by Oracle (and tests were previously closed source).

[openjdk]

@satyenme
8352997: The approval request has been created successfully.

[mlbridge]

Webrevs

• 00: Full (01c56f27)

[satyenme]

/integrate

[openjdk]

Going to push as commit 9e4d9a8.

[openjdk]

@satyenme Pushed as commit 9e4d9a8.

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