Chesnay Schepler created FLINK-6550:
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Summary: Calling ctx.collect with a null OutputTag should log a
warning or throw an exception
Key: FLINK-6550
URL: https://issues.apache.org/jira/browse/FLINK-6550
Project: Flink
Issue Type: Improvement
Components: Streaming
Reporter: Chesnay Schepler
Priority: Minor
When using side outputs it is currently possible to call
{Context#collect(OutputTag<X>, X record)} with null for the OutputTag.
Effectively this causes the data to be swallowed. It is unlikely that a user
actually intends this, so i propose to either log a warning or throw an
exception.
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