<Swing Dev> RFR: 8259650: javax/swing/JComponent/7154030/bug7154030.java still fails with "Exception: Failed to hide opaque button"

[Alexander Zuev]

8259650: javax/swing/JComponent/7154030/bug7154030.java still fails with "Exception: Failed to hide opaque button"

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Commit messages:
 - 8259650: javax/swing/JComponent/7154030/bug7154030.java still fails with "Exception: Failed to hide opaque button"
 - Merge remote-tracking branch 'upstream/master' into master
 - Merge remote-tracking branch 'upstream/master' into master
 - Merge branch 'openjdk-master' into master
 - Merge branch 'master' of https://github.com/openjdk/jdk into openjdk-master
 - Merge pull request #7 from openjdk/master
 - Merge pull request #6 from openjdk/master
 - Merge pull request #5 from openjdk/master
 - Merge pull request #4 from openjdk/master
 - Merge pull request #3 from openjdk/master
 - ... and 2 more: https://git.openjdk.java.net/jdk/compare/da4cf05d...c20f311a

Changes: https://git.openjdk.java.net/jdk/pull/2114/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2114&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8259650
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2114.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2114/head:pull/2114

PR: https://git.openjdk.java.net/jdk/pull/2114