Github user StephanEwen commented on the pull request:
https://github.com/apache/incubator-flink/pull/183#issuecomment-62036117
Virtually all cases are tests, where it makes no matter. One case can be
entirely avoided.
I think skipping the calls entirely and just letting the autoboxing do its
magic (it uses Integer.valueOf() as well) would be even nicer.
All in all the fix is fine, though.
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