[GitHub] flink issue #4784: FLINK-7736: fix some lgtm.com alerts

[1m2c3t4]

Github user 1m2c3t4 commented on the issue:

    https://github.com/apache/flink/pull/4784
  
    Rebased.
    
    @zentol @tillrohrmann thanks for reviewing this. Is it ready for merge now ?


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