Hi Seth, Thanks a lot for the report!
I think your observation is expected behaviour, if there really is a binary incompatible change between Scala minor releases. And yes, the type information macro in the Scala API is very sensitive to the exact Scala version used. I had in the past also observed generated case class serializers by the macro to be incompatible across different Scala minor releases. Just curious, what exactly is the deserialization failure you observed when using parent-first classloading? Perhaps we should properly document these surprises somewhere in the documentation ... Cheers, Gordon -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/