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https://issues.apache.org/jira/browse/CAMEL-16893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Netherton resolved CAMEL-16893.
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Resolution: Fixed
> Potential NPE in GrpcStreamingExchangeForwarder
> -----------------------------------------------
>
> Key: CAMEL-16893
> URL: https://issues.apache.org/jira/browse/CAMEL-16893
> Project: Camel
> Issue Type: Bug
> Components: camel-grpc
> Reporter: James Netherton
> Assignee: James Netherton
> Priority: Major
> Fix For: 3.11.2, 3.12.0
>
>
> GrpcProducer.doStop() invokes shutdown() on the forwarder:
> [https://github.com/apache/camel/blob/main/components/camel-grpc/src/main/java/org/apache/camel/component/grpc/GrpcProducer.java#L141]
> If the GrpcStreamingExchangeForwarder has not receieved any any exchanges,
> then the streamObserver field will be null, and any refrence to it triggered
> in doCreateStream will result in a NullPointerException:
> [https://github.com/apache/camel/blob/main/components/camel-grpc/src/main/java/org/apache/camel/component/grpc/client/GrpcStreamingExchangeForwarder.java#L92-L113]
> If the streamObserver is null, then I don't see any need to run the logic in
> shutdown().
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