Github user liuyuzhong7 commented on the issue: https://github.com/apache/flink/pull/3485 @StephanEwen It's a good idea. We can remove many duplicate code in flink-tests in this way. But I found it also duplicate in other modules. How to solve it in other modules. ![image](https://cloud.githubusercontent.com/assets/24708126/23732447/1f3cdd08-04ae-11e7-866e-a5a0e6d5e242.png)
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