[jdk21u-dev] RFR: 8310238: [test bug] javax/swing/JTableHeader/6889007/bug6889007.java fails

[Goetz Lindenmaier]

I backport this for parity with 21.0.3-oracle.

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Commit messages:
 - Backport 2cf5c2f4b6cdb52a3560ab03d272f19f47b22b17

Changes: https://git.openjdk.org/jdk21u-dev/pull/112/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=112&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8310238
  Stats: 24 lines in 1 file changed: 19 ins; 2 del; 3 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/112.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/112/head:pull/112

PR: https://git.openjdk.org/jdk21u-dev/pull/112