Clean up and opensource five tests. -------------
Commit messages: - 8316324: Opensource five miscellaneous Swing tests Changes: https://git.openjdk.org/jdk/pull/18443/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18443&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8316324 Stats: 565 lines in 6 files changed: 565 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/18443.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18443/head:pull/18443 PR: https://git.openjdk.org/jdk/pull/18443
