Fixes stream cancellation in `Http2Connection::putStream`. See comments in the ticket for details on the issue. `tier1,2` results are attached to the ticket too.
------------- Commit messages: - Check `cause` while cancelling stream in `Http2Connection::putStream` Changes: https://git.openjdk.org/jdk/pull/23540/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23540&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8349702 Stats: 6 lines in 1 file changed: 5 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/23540.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/23540/head:pull/23540 PR: https://git.openjdk.org/jdk/pull/23540
