Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/1554#issuecomment-182824952
I think this breaks the code. The `setOutEdges()` method is actually used
(even though the call site can probably be removes as well, given that they are
not read any more).
This also makes one java file executable, which is probably an accident.
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