Github user yanghua commented on the issue: https://github.com/apache/flink/pull/6092 @tillrohrmann has refactored, please review again. the reason of the travis error is not because of this PR.
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Github user yanghua commented on the issue: https://github.com/apache/flink/pull/6092 @tillrohrmann has refactored, please review again. the reason of the travis error is not because of this PR.
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