Github user aljoscha commented on the pull request: https://github.com/apache/flink/pull/591#issuecomment-93983053 Not without a lot of changes because TypeInformation is not defined in Scala. I could change every occurrence of TypeInformation in the Scala API by something like a TypeInformationWrapper. Then it would be possible to annotate this wrapper class with an implicitNotFound annotation. But this would require changes in all the code that deals with TypeInformation, also in user written libraries that use the TypeInformation context bound or implicit parameter.
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