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From "Gyula Fora (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-4275) Generic Folding, Reducing and List states behave differently from other state backends
Date Thu, 28 Jul 2016 11:56:20 GMT
Gyula Fora created FLINK-4275:
---------------------------------

             Summary: Generic Folding, Reducing and List states behave differently from other
state backends
                 Key: FLINK-4275
                 URL: https://issues.apache.org/jira/browse/FLINK-4275
             Project: Flink
          Issue Type: Bug
          Components: State Backends, Checkpointing, Streaming
            Reporter: Gyula Fora
            Priority: Critical


In https://github.com/apache/flink/commit/12bf7c1a0b81d199085fe874c64763c51a93b3bf the expected
behaviour of Folding/Reducing/List states have been changed to return null instead of empty
collections/default values.

This was adapted for the included state backends (Memory, FS, Rocks) but not for the Generic
state wrappers. As there are no tests for the Generic backend using the StateBackendTestBase
this didnt show.



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