<AWT Dev> RFR: 8198619: java/awt/Focus/FocusTraversalPolicy/ButtonGroupLayoutTraversal/ButtonGroupLayoutTraversalTest.java fails on mac [v3]

[Prasanta Sadhukhan]

> This test was failing in CI nightly testing due to samevm mode issue. 
> Modified test to use waitForIdle() judiciously, dispose frame in finally block and move the frame to center of screen.
> Several iterations of the test pass in all platforms. Link in JBS.

Prasanta Sadhukhan has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:

 - Merge master
 - Fix
 - Fix
 - 8198619: java/awt/Focus/FocusTraversalPolicy/ButtonGroupLayoutTraversal/ButtonGroupLayoutTraversalTest.java fails on mac

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Changes: https://git.openjdk.java.net/jdk/pull/3618/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3618&range=02
  Stats: 76 lines in 2 files changed: 26 ins; 21 del; 29 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3618.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3618/head:pull/3618

PR: https://git.openjdk.java.net/jdk/pull/3618