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Posted to jira@kafka.apache.org by "Konstantine Karantasis (Jira)" <ji...@apache.org> on 2021/07/26 19:59:00 UTC

[jira] [Created] (KAFKA-13139) Empty response after requesting to restart a connector without the tasks results in NPE

Konstantine Karantasis created KAFKA-13139:
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             Summary: Empty response after requesting to restart a connector without the tasks results in NPE
                 Key: KAFKA-13139
                 URL: https://issues.apache.org/jira/browse/KAFKA-13139
             Project: Kafka
          Issue Type: Bug
          Components: KafkaConnect
    Affects Versions: 3.0.0
            Reporter: Konstantine Karantasis
            Assignee: Konstantine Karantasis
             Fix For: 3.0.0


After https://issues.apache.org/jira/browse/KAFKA-4793 a response to restart only the connector (without any tasks) returns OK with an empty body. 

As system test runs revealed, this causes an NPE in [https://github.com/apache/kafka/blob/trunk/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/rest/RestClient.java#L135]

We should return 204 (NO_CONTENT) instead. 

This is a regression from previous behavior, therefore the ticket is marked as a blocker candidate for 3.0



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