[jdk11u-dev] RFR: 8251254: Add automated test for fix done in JDK-8218472

[Aleksey Shipilev]

Clean backport to match `11.0.13-oracle`.

Additional testing:
 - [x] New test passes on Linux/GTK3

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Commit messages:
 - Backport 8bf5b1d18b951df92f47661a124723678979cf04

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/234/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=234&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8251254
  Stats: 146 lines in 1 file changed: 146 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/234.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/234/head:pull/234

PR: https://git.openjdk.java.net/jdk11u-dev/pull/234