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Posted to dev@kafka.apache.org by "Matthias J. Sax (Jira)" <ji...@apache.org> on 2019/11/28 23:24:00 UTC

[jira] [Created] (KAFKA-9248) Foreign key join does not pickup default serdes and dies with NPE

Matthias J. Sax created KAFKA-9248:
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             Summary: Foreign key join does not pickup default serdes and dies with NPE
                 Key: KAFKA-9248
                 URL: https://issues.apache.org/jira/browse/KAFKA-9248
             Project: Kafka
          Issue Type: Bug
          Components: streams
    Affects Versions: 2.4.0
            Reporter: Matthias J. Sax


The foreign key join operator only works if `Serdes` are passed in by the user via corresponding API methods.

If one tries to fall back to default Serdes from `StreamsConfig` the operator does not pick up those Serdes but dies with a NPE.



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