<Swing Dev> [jdk16] RFR: 8258643: [TESTBUG] javax/swing/JComponent/7154030/bug7154030.java failed with "Exception: Failed to hide opaque button"

Wed Jan 13 22:31:15 UTC 2021

Backport from mainline.

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Commit messages:
 - 8258643: [TESTBUG] javax/swing/JComponent/7154030/bug7154030.java failed with "Exception: Failed to hide opaque button"

Changes: https://git.openjdk.java.net/jdk16/pull/119/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk16&pr=119&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8258643
  Stats: 12 lines in 1 file changed: 1 ins; 5 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk16/pull/119.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk16 pull/119/head:pull/119

PR: https://git.openjdk.java.net/jdk16/pull/119