[jira] [Created] (ZEPPELIN-3638) [Umbrella] Refactoring for Java 8

[Jeff Zhang (JIRA)]

Jeff Zhang created ZEPPELIN-3638:
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             Summary: [Umbrella] Refactoring for Java 8
                 Key: ZEPPELIN-3638
                 URL: https://issues.apache.org/jira/browse/ZEPPELIN-3638
             Project: Zeppelin
          Issue Type: Improvement
            Reporter: Jeff Zhang


Umbrella ticket for refactoring work by leverage features of Java 8



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