Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/2459
@shijinkui I understand your motivation, it is a good idea in general.
Please do not feel discouraged to suggest improvements.
There are some things that look like they could be done better, but
actually cannot be changed, because of some tricky bugs or limitations in other
parts (like build plugins). That was the case here, so sometimes we cannot
change some things.
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