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

[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).

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Commit messages:
 - 8328555

Changes: https://git.openjdk.org/jdk/pull/18439/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18439&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328555
  Stats: 150 lines in 2 files changed: 149 ins; 0 del; 1 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