Github user StephanEwen commented on the pull request:
https://github.com/apache/incubator-flink/pull/199#issuecomment-62869820
It was actually a conscious choice to have all examples once. It does not
really add value to have the examples twice. When all you have as a jar with
bytecode, and both versions behave the same, why would you care what language
the byte code was compiled from?
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