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https://issues.apache.org/jira/browse/FLINK-6549?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16169900#comment-16169900
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ASF GitHub Bot commented on FLINK-6549:
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Github user zentol commented on the issue:
https://github.com/apache/flink/pull/4663
merging.
> Improve error message for type mismatches with side outputs
> -----------------------------------------------------------
>
> Key: FLINK-6549
> URL: https://issues.apache.org/jira/browse/FLINK-6549
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Affects Versions: 1.3.0, 1.4.0
> Reporter: Chesnay Schepler
> Assignee: Bowen Li
> Priority: Minor
>
> A type mismatch when using side outputs causes a ClassCastException to be
> thrown. It would be neat to include the name of the OutputTags in the
> exception message.
> This can occur when multiple {{OutputTag]}s with different types but
> identical names are being used.
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