Github user tillrohrmann commented on the pull request:
https://github.com/apache/flink/pull/545#issuecomment-88836418
Oh ok, I was not aware of #475. I just added the additional checks because
of the fail message in the try block that you expect a
```NoSuchElementException```. If this is not a case, then we can just adapt the
fail message and revert the additional checks I've introduced. Sorry for
screwing up your test cases.
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