Github user Elbehery commented on the pull request: https://github.com/apache/flink/pull/271#issuecomment-70624472 @rmetzger I have a problem with the Kryo serializer, it creates a reference of my Pojo and not an object. I am using an event driven Json parser, in which I should fill the object manually, and for performance, I am trying to create only one object. The problem now that Kryo creates only a reference, not an object. Attached screen shot for the problem. 
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---