[jira] [Created] (OOZIE-2154) Remove unnecessary interfaces with only one class implementing

[Bowen Zhang (JIRA)]

Bowen Zhang created OOZIE-2154:
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             Summary: Remove unnecessary interfaces with only one class 
implementing
                 Key: OOZIE-2154
                 URL: https://issues.apache.org/jira/browse/OOZIE-2154
             Project: Oozie
          Issue Type: Sub-task
            Reporter: Bowen Zhang






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