Robin Moffatt created KAFKA-7052:
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Summary: 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
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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