Ted Yu created FLINK-6493:
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Summary: Ineffective null check in
RegisteredOperatorBackendStateMetaInfo#equals()
Key: FLINK-6493
URL: https://issues.apache.org/jira/browse/FLINK-6493
Project: Flink
Issue Type: Bug
Reporter: Ted Yu
Priority: Minor
{code}
&& ((partitionStateSerializer == null && ((Snapshot)
obj).getPartitionStateSerializer() == null)
|| partitionStateSerializer.equals(((Snapshot)
obj).getPartitionStateSerializer()))
&& ((partitionStateSerializerConfigSnapshot == null && ((Snapshot)
obj).getPartitionStateSerializerConfigSnapshot() == null)
|| partitionStateSerializerConfigSnapshot.equals(((Snapshot)
obj).getPartitionStateSerializerConfigSnapshot()));
{code}
The null check for partitionStateSerializer /
partitionStateSerializerConfigSnapshot is in combination with another clause.
This may lead to NPE in the partitionStateSerializer.equals() call.
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