Fixes a scenario where a `ServerHandshakeContext` might be cast as a `ClientHandshakeContext`.
------------- Commit messages: - set consumer to null if we're not in client mode Changes: https://git.openjdk.org/jdk/pull/13727/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13727&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8294983 Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/13727.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/13727/head:pull/13727 PR: https://git.openjdk.org/jdk/pull/13727
