[jira] [Created] (FLINK-10254) Fix check in stateBackend

[Shang Yuanchun (Jira)]

aitozi created FLINK-10254:
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             Summary: Fix check in stateBackend
                 Key: FLINK-10254
                 URL: https://issues.apache.org/jira/browse/FLINK-10254
             Project: Flink
          Issue Type: Improvement
          Components: State Backends, Checkpointing
    Affects Versions: 1.6.0
            Reporter: aitozi
            Assignee: aitozi
             Fix For: 1.6.0


The checkNotNull is unnecessary of numberOfKeyGroups with a primitive type , we just have to make sure it is bigger than 1.



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