RFR: 8194946: Regression automated Test 'javax/swing/JFileChooser/6738668/bug6738668.java' fails [v3]

[Prasanta Sadhukhan]

> Test was failing in CI system in nightly testing.
> Saw it failed with HeadlessException in macos-x64 and mascos-aarch64 and with GTKL&F not supported in linux-x64 in headless CI system.
> Made the test headful and test now passes in all platforms (link in JBS)

Prasanta Sadhukhan has updated the pull request incrementally with two additional commits since the last revision:

 - Merge branch 'JDK-8194946' of github.com:prsadhuk/jdk into JDK-8194946
 - Add continue

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8202/files
  - new: https://git.openjdk.java.net/jdk/pull/8202/files/9b60c728..bb99222b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8202&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8202&range=01-02

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8202.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8202/head:pull/8202

PR: https://git.openjdk.java.net/jdk/pull/8202