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https://issues.apache.org/jira/browse/FLINK-10695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16665713#comment-16665713
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ASF GitHub Bot commented on FLINK-10695:
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A412 opened a new pull request #6945: [FLINK-10695] Cannot load user class
errors set underlying cause
URL: https://github.com/apache/flink/pull/6945
## What is the purpose of the change
* This pull request improves the traceability of "Cannot load user class"
exceptions.
## Brief change log
* Set the underlying `ClassNotFoundException`s as the cause of the resulting
`StreamTaskException`s.
## Verifying this change
This change is a trivial rework / code cleanup without any test coverage.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / *no*)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / *no*)
- The serializers: (yes / *no* / don't know)
- The runtime per-record code paths (performance sensitive): (yes / *no* /
don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / *no* / don't know)
- The S3 file system connector: (yes / *no* / don't know)
## Documentation
- Does this pull request introduce a new feature? (yes / *no*)
- If yes, how is the feature documented? (*not applicable* / docs /
JavaDocs / not documented)
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> "Cannot load user class" errors should set the underlying
> ClassNotFoundException as their cause
> -----------------------------------------------------------------------------------------------
>
> Key: FLINK-10695
> URL: https://issues.apache.org/jira/browse/FLINK-10695
> Project: Flink
> Issue Type: Improvement
> Components: Streaming
> Reporter: Max Feng
> Priority: Major
> Labels: pull-request-available
>
> In {{StreamConfig#getStreamOperator}}, {{ClassNotFoundException}} is
> propagated as {{StreamTaskException}} but does not set the underlying
> {{ClassNotFoundException}} as the cause of the {{StreamTaskException}}.
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