Github user uce commented on the issue:
https://github.com/apache/flink/pull/2342
I had to address some things when reviewing this:
https://github.com/uce/flink/tree/ram
In general the changes were good, but overlooked many occurrences that are
not possible to catch with automatic refactoring tools. I went through those
manually. I will merge this after my local Travis build passes.
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