[jira] [Created] (FLINK-4601) Check for empty string properly

[Alexander Pivovarov (JIRA)]

Alexander Pivovarov created FLINK-4601:
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             Summary: Check for empty string properly
                 Key: FLINK-4601
                 URL: https://issues.apache.org/jira/browse/FLINK-4601
             Project: Flink
          Issue Type: Bug
    Affects Versions: 1.1.2
            Reporter: Alexander Pivovarov
            Priority: Trivial


UdfAnalyzerExamplesTest.java and UdfAnalyzerTest.java use == to check for empty 
string. We should use isEmpty() instead



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