RFR: 8361067: Test ExtraButtonDrag.java requires frame.dispose in finally block [v4]

[Ravi Gupta]

> Test test/jdk/java/awt/Mouse/MouseModifiersUnitTest/ExtraButtonDrag.java left debris on system whenever fails its required frame.dispose() in finally block.
> 
> 
>  finally {
>             EventQueue.invokeAndWait(ExtraButtonDrag::disposeFrame);
>         }
>     public static void disposeFrame() {
>         if (frame != null) {
>             frame.dispose();
>             frame = null;
>         }
>     }

Ravi Gupta has updated the pull request incrementally with one additional commit since the last revision:

  8361067: Test Refactor with review comments

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/26043/files
  - new: https://git.openjdk.org/jdk/pull/26043/files/417d94e1..ecaa0334

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26043&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26043&range=02-03

  Stats: 148 lines in 1 file changed: 68 ins; 38 del; 42 mod
  Patch: https://git.openjdk.org/jdk/pull/26043.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26043/head:pull/26043

PR: https://git.openjdk.org/jdk/pull/26043