[jdk17u] Integrated: 8268284: javax/swing/JComponent/7154030/bug7154030.java fails with "Exception: Failed to hide opaque button"

[Alex Kasko]

Clean backport of a Mac-specfic test fix. The change is test only.

Note, this test was added to problem list with [JDK-8271894](https://bugs.openjdk.java.net/browse/JDK-8271894) (in 17) and removed from problem list with [JDK-8271895](https://bugs.openjdk.java.net/browse/JDK-8271895) that is intended to be added as a follow up.

Note 2, this is a re-creaton of a PR #164 that failed jcheck for some reason.

Additional testing:

 - [x] checked that test passes on Mac

-------------

Commit messages:
 - Revert "spacing changes to trigger jcheck"
 - spacing changes to trigger jcheck
 - Backport 534f00510e26da8deb891b4184c860ec64991b8f

Changes: https://git.openjdk.java.net/jdk17u/pull/229/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=229&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8268284
  Stats: 10 lines in 1 file changed: 3 ins; 0 del; 7 mod
  Patch: https://git.openjdk.java.net/jdk17u/pull/229.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u pull/229/head:pull/229

PR: https://git.openjdk.java.net/jdk17u/pull/229