Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/2686
Thanks @liguohuicmss for the improvement!
I manually tested this branch and it works really well.
It seems Jenkins somehow failed to start a build job for this pullrequest.
@liguohuicmss Could you try setup [Continuous
Integration](http://zeppelin.apache.org/contribution/contributions.html#continuous-integration)
and trigger the build? push new commit or close/reopen pullrequest will
trigger the job.---
