Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/464#issuecomment-78015651
This should work.
BTW: If you want a test that specifically targets the CollectionExecution,
then it would be better to write a regular JUnit Test case (that does not
extends JavaProgramTestBase) and start in the test method with
`ExecutionEnvironment.createCollectionsEnvironment()`.
Otherwise, +1 to merge
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