Github user ivmaykov commented on the issue:
https://github.com/apache/zookeeper/pull/679
@anmolnar the benefit of the current DOS tests is to verify that certain
actions on a UnifiedSocket (getting input stream, setting socket options, etc)
do not trigger the blocking read for TLS / plaintext mode detection. I think
there is benefit to having such tests `UnifiedServerSocketTest`, since they
test behavior that's implemented in `UnifiedServerSocket.java`. What do you
think?---
