RFR: 8328555: hidpi problems for test java/awt/Dialog/DialogAnotherThread/JaWSTest.java [v2]

[Phil Race]

> This previously closed test is cleaned up, opened and fixed to work on hidpi at fractional scales.
> It has unrelated problems on macOS 14 and is problem listed there (as it was when it was a closed test).

Phil Race has updated the pull request incrementally with one additional commit since the last revision:

  8328555

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Changes:
  - all: https://git.openjdk.org/jdk/pull/18439/files
  - new: https://git.openjdk.org/jdk/pull/18439/files/5aaef6f8..434ea601

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18439&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18439&range=00-01

  Stats: 3 lines in 2 files changed: 0 ins; 1 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/18439.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18439/head:pull/18439

PR: https://git.openjdk.org/jdk/pull/18439