[jira] [Created] (FLINK-6549) Improve error message for type mismatches with side outputs

[Shang Yuanchun (Jira)]

Chesnay Schepler created FLINK-6549:
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             Summary: 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
    Affects Versions: 1.3.0, 1.4.0
            Reporter: Chesnay Schepler
            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 names but identical names are being used.



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