Ruidong Li created FLINK-7971:
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Summary: Fix potential NPE with inconsistent state
Key: FLINK-7971
URL: https://issues.apache.org/jira/browse/FLINK-7971
Project: Flink
Issue Type: Bug
Components: Table API & SQL
Reporter: Ruidong Li
Assignee: Ruidong Li
Priority: Major
In {{GroupAggProcessFunction}}， the status of {{state}} and {{cntState}} is
not consistent, which may cause NPE when {{state}} is not null but {{cntState}}
is null.
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