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https://issues.apache.org/jira/browse/KAFKA-19206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kirk True updated KAFKA-19206:
------------------------------
    Description: The {{ConsumerNetworkThread}} initializes its 
{{NetworkClientDelegate}} and {{RequestManagers}} objects in 
{{{}initializeResources(){}}}. If either object fails its initialization, an 
error is thrown, causing the {{AsyncKafkaConsumer}} to close. During the 
consumer close process, the {{ConsumerNetworkThread}} calls its {{cleanup()}} 
method, but a {{NullPointerException}} will be thrown when attempts to 
dereference either the {{NetworkClientDelegate}} and/or {{RequestManagers}} 
objects.  (was: The ConsumerNetworkThread creates a new NetworkClient, which 
connects to and  authenticates against a broker. If the authentication fails, 
the NetworkClient throws an error, causing the AsyncKafkaConsumer to close. 
During the consumer close process the ConsumerNetworkThread is closed, but it 
throws a NullPointerException when it attempts to use the requestManagers 
and/or networkClientDelegate objects.)

> ConsumerNetworkThread.cleanup() throws NullPointerException if 
> initializeResources() failed
> -------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-19206
>                 URL: https://issues.apache.org/jira/browse/KAFKA-19206
>             Project: Kafka
>          Issue Type: Bug
>          Components: clients, consumer
>    Affects Versions: 4.0.0
>            Reporter: Kirk True
>            Assignee: Kirk True
>            Priority: Major
>              Labels: kip-848-client-support
>             Fix For: 4.1.0
>
>
> The {{ConsumerNetworkThread}} initializes its {{NetworkClientDelegate}} and 
> {{RequestManagers}} objects in {{{}initializeResources(){}}}. If either 
> object fails its initialization, an error is thrown, causing the 
> {{AsyncKafkaConsumer}} to close. During the consumer close process, the 
> {{ConsumerNetworkThread}} calls its {{cleanup()}} method, but a 
> {{NullPointerException}} will be thrown when attempts to dereference either 
> the {{NetworkClientDelegate}} and/or {{RequestManagers}} objects.



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