Github user mkedwards commented on the issue:
https://github.com/apache/zookeeper/pull/707
The `LeaderBeanTest` failure was real-ish; the mock `QuorumVerifier` wasn't
set up properly for address resolution, so it would NPE (without the new
condvar-style wait for addresses to be set) or hang (with it). I just pushed a
fix to the test.---
