Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/2771
I ran CI test of this branch
https://travis-ci.org/Leemoonsoo/zeppelin/builds/343475153 in my travis
account. And build went success. I think previous error was flaky test
unrelated to this PR.
LGTM and merge to master and branch-0.8.---
