[jdk11u-dev] RFR: 8017175: [TESTBUG] javax/swing/JPopupMenu/4634626/bug4634626.java sometimes failed on mac

[Goetz Lindenmaier]

I backport this for parity with 17.0.5-oracle.

I resolved the ProblemList and a chunk in the test. Trivial.

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Commit messages:
 - Backport 4c3491bfa5f296b80c56a37cb4fffd6497323ac2

Changes: https://git.openjdk.org/jdk11u-dev/pull/1259/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1259&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8017175
  Stats: 114 lines in 2 files changed: 53 ins; 14 del; 47 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1259.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1259/head:pull/1259

PR: https://git.openjdk.org/jdk11u-dev/pull/1259