[jdk17u-dev] RFR: 8196465: javax/swing/JComboBox/8182031/ComboPopupTest.java fails on Linux

[Goetz Lindenmaier]

I backport this for parity with 17.0.16-oracle

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Commit messages:
 - Backport 83466434fda3bd048fa8e2d274a797a7d9506c16

Changes: https://git.openjdk.org/jdk17u-dev/pull/3455/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3455&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8196465
  Stats: 29 lines in 2 files changed: 6 ins; 18 del; 5 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3455.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3455/head:pull/3455

PR: https://git.openjdk.org/jdk17u-dev/pull/3455