Http2ClientImpl.stopping and Http2ClientImpl.failures are always accessed under synchronized(this). So we can remove 'volatile' modifier from 'stopping'. And remove 'synchronizedSet' wrapper from 'failures'
------------- Commit messages: - [PATCH] Cleanup redundant synchronization in Http2ClientImpl Changes: https://git.openjdk.org/jdk/pull/9311/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9311&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8289385 Stats: 3 lines in 1 file changed: 0 ins; 1 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/9311.diff Fetch: git fetch https://git.openjdk.org/jdk pull/9311/head:pull/9311 PR: https://git.openjdk.org/jdk/pull/9311
