RFR: 8352149: Test java/awt/Frame/MultiScreenTest.java generates too many frames on Linux [v10]

[Khalid Boulanouare]

> Fixes issue in which the test fails when run on multi-screen machine.
> 
> Tested on Ubuntu 24.04, MacOS 15 and Windows 11
> 
> JTREG
> 
> runner starting test: java/awt/Frame/MultiScreenTest.java
> runner finished test: java/awt/Frame/MultiScreenTest.java
> Passed. Execution successful

Khalid Boulanouare has updated the pull request incrementally with two additional commits since the last revision:

 - Nests classes inside test class
 - Cleans up code

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/24752/files
  - new: https://git.openjdk.org/jdk/pull/24752/files/2830acc4..1546069b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24752&range=09
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24752&range=08-09

  Stats: 458 lines in 1 file changed: 139 ins; 135 del; 184 mod
  Patch: https://git.openjdk.org/jdk/pull/24752.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24752/head:pull/24752

PR: https://git.openjdk.org/jdk/pull/24752