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From "John Poth (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CXF-7147) Unable to register a generic _InvocationCallback<Object>_ when using the async proxy client API in JAX-RS
Date Tue, 22 Nov 2016 09:30:59 GMT
John Poth created CXF-7147:
------------------------------

             Summary: Unable to register a generic _InvocationCallback<Object>_ when
using the async proxy client API in JAX-RS
                 Key: CXF-7147
                 URL: https://issues.apache.org/jira/browse/CXF-7147
             Project: CXF
          Issue Type: Bug
          Components: JAX-RS
            Reporter: John Poth


It is currently impossible to register a generic _InvocationCallback<Object>_ when invoking
a method that returns void. This is due to a [check|https://github.com/apache/cxf/blob/master/rt/rs/client/src/main/java/org/apache/cxf/jaxrs/client/ClientProxyImpl.java#L797]
that isn't satisfied when the _methodReturnType_ is void. I propose to add the following case

{code}
Object.class == callbackRespClass
{code}

And let the user handle the logic.

 I also propose to remove the condition

{code}
Response.class == callbackRespClass
{code}

Which will lead to failure when [casting|https://github.com/apache/cxf/blob/master/rt/rs/client/src/main/java/org/apache/cxf/jaxrs/client/JaxrsClientCallback.java#L76]
to a return type upon completion. I will provide a PR.

[~sergey_beryozkin] sorry for the confusion.



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