Github user StephanEwen commented on the issue: https://github.com/apache/flink/pull/2623 @chermenin Do you plan to continue with this pull request? Would be great if you I would suggest to adjust it in the following way: - Update the Chill dependency (validate if they change any existing serializer) - Exclude Kryo version 2 and version 3 from the Chill dependency. That way, Flink's Kryo version should be used by Chill as well. Also, testing the serializers via a "GroupReduce" integration test seems heavy and unspecific. Can you change this to a serializer Unit test? Have a look at the Kryo Serializer unit tests for an example. Do you think that would work?
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