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Posted to issues@camel.apache.org by "James Netherton (Jira)" <ji...@apache.org> on 2021/08/26 10:57:00 UTC

[jira] [Created] (CAMEL-16893) Potential NPE in GrpcStreamingExchangeForwarder

James Netherton created CAMEL-16893:
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             Summary: 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
             Fix For: 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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