Cleaned up five more tests. Continuation of https://github.com/openjdk/jdk/pull/18184
Unfortunately one of the commits rendered the whole PR invalid so i closed it and restarting it here. All comments from the previous review are addressed. ------------- Commit messages: - 8316388: Opensource five Swing component related regression tests Changes: https://git.openjdk.org/jdk/pull/18259/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18259&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8316388 Stats: 468 lines in 5 files changed: 468 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/18259.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18259/head:pull/18259 PR: https://git.openjdk.org/jdk/pull/18259
