[jdk21u-dev] RFR: 8346055: javax/swing/text/StyledEditorKit/4506788/bug4506788.java fails in ubuntu22.04

[Goetz Lindenmaier]

I backport this for parity with 21.0.7-oracle

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Commit messages:
 - Backport 31ceec7cd55b455cddf0953cc23aaa64612bd6e7

Changes: https://git.openjdk.org/jdk21u-dev/pull/1337/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1337&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8346055
  Stats: 110 lines in 1 file changed: 37 ins; 50 del; 23 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1337.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1337/head:pull/1337

PR: https://git.openjdk.org/jdk21u-dev/pull/1337