[jdk24u] RFR: 8346581: JRadioButton/ButtonGroupFocusTest.java fails in CI on Linux

Fri Jan 24 19:56:31 UTC 2025

Improves stability of the `javax/swing/JRadioButton/ButtonGroupFocus/ButtonGroupFocusTest.java` test.

See https://github.com/openjdk/jdk/pull/22977 for more details.

> This pull request contains a backport of commit [57af52c5](https://github.com/openjdk/jdk/commit/57af52c57390f6f7413b5d3ffe64921c9b83aae4) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Alexey Ivanov on 10 Jan 2025 and was reviewed by Harshitha Onkar and Damon Nguyen.

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Commit messages:
 - Backport 57af52c57390f6f7413b5d3ffe64921c9b83aae4

Changes: https://git.openjdk.org/jdk24u/pull/32/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk24u&pr=32&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8346581
  Stats: 124 lines in 1 file changed: 85 ins; 13 del; 26 mod
  Patch: https://git.openjdk.org/jdk24u/pull/32.diff
  Fetch: git fetch https://git.openjdk.org/jdk24u.git pull/32/head:pull/32

PR: https://git.openjdk.org/jdk24u/pull/32