[jdk22u] RFR: 8187759: Background not refreshed when painting over a transparent JFrame

Wed Feb 28 12:48:08 UTC 2024

Backporting the fix which fixes Background painting issue over a transparent JFrame.
Clean backport.

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Commit messages:
 - Backport 04d43c435d3ede519df169053dd9d724aa2312eb

Changes: https://git.openjdk.org/jdk22u/pull/77/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk22u&pr=77&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8187759
  Stats: 219 lines in 2 files changed: 219 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk22u/pull/77.diff
  Fetch: git fetch https://git.openjdk.org/jdk22u.git pull/77/head:pull/77

PR: https://git.openjdk.org/jdk22u/pull/77