[jdk17u-dev] RFR: 8017175: [TESTBUG] javax/swing/JPopupMenu/4634626/bug4634626.java sometimes failed on mac

[Jonathan Dowland]

Hello, this is a backport of [4c3491bfa5f296b80c56a37cb4fffd6497323ac2 from openjdk/jdk](https://github.com/openjdk/jdk/commit/4c3491bfa5f296b80c56a37cb4fffd6497323ac2) originally by 
Alexander Zuev committed on 29 Oct 2021.

This is a backport to jdk17u-dev for Oracle parity.

The patch does not apply clean: conflicts to resolve in ProblemList.txt. The other hunks are clean.

The patch rewrites a test. The written test passes for me on a local macOS system.

JBS: https://bugs.openjdk.org/browse/JDK-8017175

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Commit messages:
 - 8017175: [TESTBUG] javax/swing/JPopupMenu/4634626/bug4634626.java sometimes failed on mac

Changes: https://git.openjdk.org/jdk17u-dev/pull/521/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=521&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/jdk17u-dev/pull/521.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/521/head:pull/521

PR: https://git.openjdk.org/jdk17u-dev/pull/521