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https://issues.apache.org/jira/browse/FLINK-9958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16556770#comment-16556770
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ASF GitHub Bot commented on FLINK-9958:
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Xpray opened a new pull request #6426: [FLINK-9958][DataSet] Fix potential NPE
for delta iteration of DataSet
URL: https://github.com/apache/flink/pull/6426
## What is the purpose of the change
Fix potential NPE for delta iteration of DataSet
## Brief change log
- change preVisit logic of JobGenerator
## Verifying this change
This change added tests and can be verified as follows:
org.apache.flink.api.scala.operators.translation.DeltaIterationTranslationTest#testIterateDelta
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Yarn/Mesos, ZooKeeper: no
- The S3 file system connector:no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? no
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> Fix potential NPE for delta iteration of DataSet
> ------------------------------------------------
>
> Key: FLINK-9958
> URL: https://issues.apache.org/jira/browse/FLINK-9958
> Project: Flink
> Issue Type: Bug
> Components: DataSet API
> Reporter: Ruidong Li
> Assignee: Ruidong Li
> Priority: Major
> Labels: pull-request-available
>
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