Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/1928#issuecomment-215527988
Thanks for the update and the explanations @twalthr.
I think it would be good to leave comments about the "intentional bugs"
(missing null check and reference equality) ;-) IntelliJ pointed those out to
me and others might wonder as well.
Good to merge after the comments are added.
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