Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/1436#issuecomment-162530467
Good catch, @jaoki and thanks for making me aware of this @zentol.
`Plan` was originally implemented for the Record API. For the later DataSet
API, `JavaPlan` extends `Plan` and only overrides the `getPostPassClassName()`
method. I checked the code and `Plan` is nowhere instantiated, only `JavaPlan`.
I will move the `getPostPassClassName()` from `JavaPlan` to `Plan` and
remove `JavaPlan`.
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