[jdk18u] RFR: 8284866: Add test to JDK-8273056

[Rob McKenna]

Backport test fix from jdk/jdk

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Commit messages:
 - Backport 3ffec3a50b70051eba3fc7cd816e49811870f5d4

Changes: https://git.openjdk.java.net/jdk18u/pull/109/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18u&pr=109&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8284866
  Stats: 58 lines in 1 file changed: 58 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk18u/pull/109.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18u pull/109/head:pull/109

PR: https://git.openjdk.java.net/jdk18u/pull/109