RFR: 6850365: java/awt/Focus/WindowActivationFocusTest.java fails [v3]

[Prasanta Sadhukhan]

> Test is made more robust by executing in EDT and cleanup done by frame dispose. Testing result is green.

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  Rename test

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Changes:
  - all: https://git.openjdk.org/jdk/pull/27214/files
  - new: https://git.openjdk.org/jdk/pull/27214/files/7fd3c5e3..26c7f0a6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27214&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27214&range=01-02

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/27214.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27214/head:pull/27214

PR: https://git.openjdk.org/jdk/pull/27214