[jira] [Created] (KAFKA-9883) Connect request to restart task can result in IllegalArgumentError: "uriTemplate" parameter is null

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

Randall Hauch created KAFKA-9883:
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             Summary: Connect request to restart task can result in IllegalArgumentError: "uriTemplate" parameter is null
                 Key: KAFKA-9883
                 URL: https://issues.apache.org/jira/browse/KAFKA-9883
             Project: Kafka
          Issue Type: Bug
          Components: KafkaConnect
    Affects Versions: 2.4.0
            Reporter: Randall Hauch


When attempting to restart a connector, the following is logged by Connect:



 
{code:java}
ERROR Uncaught exception in REST call to /connectors/my-connector/tasks/0/restart (org.apache.kafka.connect.runtime.rest.errors.ConnectExceptionMapper)
java.lang.IllegalArgumentException: "uriTemplate" parameter is null.
    at org.glassfish.jersey.uri.internal.JerseyUriBuilder.uri(JerseyUriBuilder.java:189)
    at org.glassfish.jersey.uri.internal.JerseyUriBuilder.uri(JerseyUriBuilder.java:72)
    at javax.ws.rs.core.UriBuilder.fromUri(UriBuilder.java:96)
    at org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource.completeOrForwardRequest(ConnectorsResource.java:263)
    at org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource.completeOrForwardRequest(ConnectorsResource.java:298)
    at org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource.restartTask(ConnectorsResource.java:218)
{code}
Resubmitting the restart REST request will usually resolve the problem.

 



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