RFR: 8360160: ubuntu-22-04 machine is failing client tests [v2]

[Damon Nguyen]

> Ubuntu machine has multiple failing java awt tests. When looking at the screenshots of the desktop when each test fails, a white square can be seen at the top-left of the desktop.
> 
> <img width="803" height="344" alt="Screenshot 2025-08-20 at 10 06 37 AM" src="https://github.com/user-attachments/assets/52d023f6-18ff-46d4-98c4-e2e332ab6a03" />
> 
> This seems to be similar to the white square that `FrameVisualTest.java` creates so the frame was not disposed of properly during this failure. I have tried re-creating this failure on Ubuntu 22.04, similar to the failure OS that this originally occurred on, to no avail. I ran this test individually, and with all of the listed failing tests back-to-back but all the tests pass as normal. This stabilization fix to the test attempts to prevent this in case it occurs again.

Damon Nguyen has updated the pull request incrementally with one additional commit since the last revision:

  Replace setAutoDelay

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/26871/files
  - new: https://git.openjdk.org/jdk/pull/26871/files/7f4a298f..585fc6cc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26871&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26871&range=00-01

  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/26871.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26871/head:pull/26871

PR: https://git.openjdk.org/jdk/pull/26871