Github user zentol commented on the issue:
https://github.com/apache/flink/pull/3625
Regarding the license: Every (non-binary) file in the flink repository must
have the apache license at the very top of the file. Simply take a look at an
existing scala class and you'll see what i mean.
Second: It is not required to open a new PR when making changes, you can
add commits to the branch of the PR. (note that force-pushes should only be
done if necessary).
Third, the file count in this PR is dramatically higher than in the last
one (4 vs 84), is this intended or a mistake?
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