[jira] [Created] (ZEPPELIN-1422) fix InterpreterProperty equals methods, add null check

[Weichen Xu (JIRA)]

Weichen Xu created ZEPPELIN-1422:
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             Summary: fix InterpreterProperty equals methods, add null check
                 Key: ZEPPELIN-1422
                 URL: https://issues.apache.org/jira/browse/ZEPPELIN-1422
             Project: Zeppelin
          Issue Type: Bug
          Components: zeppelin-interpreter
    Affects Versions: 0.7.0
            Reporter: Weichen Xu


there is a small bug that `InterpreterProperty.equals` do not check `null`.
jdk lib request the `null` check otherwise it has the risk causing java 
collections operation throw exception.



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