Improves the stability of the memory leak test for CompletableFuture timeout cancellation by both reducing the count by 50% (which should still be above threshold to trigger given the ample margin set initially) as well as extending the default timeout of the test run.
------------- Commit messages: - Hardening the memory leak test for CompletableFuture timeout cancellation Changes: https://git.openjdk.org/jdk/pull/13116/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13116&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8303742 Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/13116.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/13116/head:pull/13116 PR: https://git.openjdk.org/jdk/pull/13116
