RFR: 8361067: Test ExtraButtonDrag.java requires frame.dispose in finally block [v3]

[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: Review comments

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/26043/files
  - new: https://git.openjdk.org/jdk/pull/26043/files/1a2cb6e0..417d94e1

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26043&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26043&range=01-02

  Stats: 18 lines in 1 file changed: 11 ins; 2 del; 5 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