<AWT Dev> RFR: 8198619: java/awt/Focus/FocusTraversalPolicy/ButtonGroupLayoutTraversal/ButtonGroupLayoutTraversalTest.java fails on mac [v2]

[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 incrementally with one additional commit since the last revision:

  Fix

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3618/files
  - new: https://git.openjdk.java.net/jdk/pull/3618/files/4aea1d99..dec7e3c0

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3618&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3618&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 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