Jun Qin created FLINK-27173:
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Summary: CoGroupedStreams$TaggedUnion cannot be used as a POJO type
Key: FLINK-27173
URL: https://issues.apache.org/jira/browse/FLINK-27173
Project: Flink
Issue Type: Bug
Components: API / Type Serialization System
Affects Versions: 1.14.4
Reporter: Jun Qin
Attachments: StreamingJob.java
Attached is the code to demo the issue. When running the job, we can see the
following:
{code:java}
11:48:26,584 INFO org.apache.flink.api.java.typeutils.TypeExtractor
[] - class
org.apache.flink.streaming.api.datastream.CoGroupedStreams$TaggedUnion does not
contain a setter for field one
11:48:26,586 INFO org.apache.flink.api.java.typeutils.TypeExtractor
[] - Class class
org.apache.flink.streaming.api.datastream.CoGroupedStreams$TaggedUnion cannot
be used as a POJO type because not all fields are valid POJO fields, and must
be processed as GenericType. Please read the Flink documentation on "Data Types
& Serialization" for details of the effect on performance. {code}
TaggedUnion is a class in Flink. This should be fixed in Flink.
[^StreamingJob.java]
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