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From "mingleizhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-6493) Ineffective null check in RegisteredOperatorBackendStateMetaInfo#equals()
Date Sat, 22 Jul 2017 14:12:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-6493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

mingleizhang updated FLINK-6493:
--------------------------------
    Fix Version/s: 1.4.0

> Ineffective null check in RegisteredOperatorBackendStateMetaInfo#equals()
> -------------------------------------------------------------------------
>
>                 Key: FLINK-6493
>                 URL: https://issues.apache.org/jira/browse/FLINK-6493
>             Project: Flink
>          Issue Type: Bug
>          Components: State Backends, Checkpointing
>            Reporter: Ted Yu
>            Assignee: mingleizhang
>            Priority: Minor
>             Fix For: 1.4.0
>
>
> {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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