Github user mwkang commented on the issue:
https://github.com/apache/incubator-zeppelin/pull/904
While I rebase this PR, I found this issue was been resolved
[AuthenticationInfo in master].
So I closed PR.
[AuthenticationInfo in master]:
https://github.com/apache/incubator-zeppelin/blob/master/zeppelin-zengine/src/main/java/org/apache/zeppelin/notebook/Paragraph.java#L53
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