Found two more tests that use the same pattern from JDK-8392076. Same improvement.
--------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - Use CountDownLatch in two more tests Changes: https://git.openjdk.org/jdk/pull/32988/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=32988&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8392780 Stats: 26 lines in 2 files changed: 6 ins; 8 del; 12 mod Patch: https://git.openjdk.org/jdk/pull/32988.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/32988/head:pull/32988 PR: https://git.openjdk.org/jdk/pull/32988
