[jira] [Resolved] (KAFKA-7052) ExtractField SMT throws NPE - needs clearer error message

["Randall Hauch (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-7052?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Randall Hauch resolved KAFKA-7052.
----------------------------------
    Fix Version/s: 2.4.1
                   2.3.2
                   2.5.0
                   2.2.3
         Reviewer: Randall Hauch
       Resolution: Fixed

Merged to the `trunk`, `2.5`, `2.4`, `2.3` and `2.2` branches.

> ExtractField SMT throws NPE - needs clearer error message
> ---------------------------------------------------------
>
>                 Key: KAFKA-7052
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7052
>             Project: Kafka
>          Issue Type: Improvement
>          Components: KafkaConnect
>            Reporter: Robin Moffatt
>            Priority: Major
>             Fix For: 2.2.3, 2.5.0, 2.3.2, 2.4.1
>
>
> With the following Single Message Transform: 
> {code:java}
> "transforms.ExtractId.type":"org.apache.kafka.connect.transforms.ExtractField$Key",
> "transforms.ExtractId.field":"id"{code}
> Kafka Connect errors with : 
> {code:java}
> java.lang.NullPointerException
> at org.apache.kafka.connect.transforms.ExtractField.apply(ExtractField.java:61)
> at org.apache.kafka.connect.runtime.TransformationChain.apply(TransformationChain.java:38){code}
> There should be a better error message here, identifying the reason for the NPE.
> Version: Confluent Platform 4.1.1



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