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From "Serhiy Yakovyn (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CXF-6437) @Produces has no effect if the annotated method returns void when using ClientProxy
Date Thu, 04 Jun 2015 08:49:38 GMT
Serhiy Yakovyn created CXF-6437:
-----------------------------------

             Summary: @Produces has no effect if the annotated method returns void when using
ClientProxy
                 Key: CXF-6437
                 URL: https://issues.apache.org/jira/browse/CXF-6437
             Project: CXF
          Issue Type: Wish
          Components: JAX-RS
    Affects Versions: 2.7.16
            Reporter: Serhiy Yakovyn


@Produces has no effect on CXF if the annotated method returns void. The "accept" is set to
default "*/*".
Though it looks right for successful calls of the method, it starts causing issues when there
are different type of responses in case of an error.

For example:
 @PUT
 @Path("{id}/info")
 @Consumes(MediaType.APPLICATION_JSON)
 @Produces(MediaType.APPLICATION_JSON)
 void setInfo(@PathParam("id") String documentId, StorageObject newInfo);

No response is expected on success. 
However when the passed StorageObject contains some invalid data the server responds with
"HTTP/1.1 400 Bad Request" and the body contains detailed information about which fields contain
invalid values.
That information can be send either as JSON or as XML data, but I cannot make CXF to specify
which format I want the error to be sent in.

The issue is in
org.apache.cxf.jaxrs.client.ClientProxyImpl.setRequestHeaders(MultivaluedMap<String, String>,
OperationResourceInfo, boolean, Class<?>, Class<?>)
method, namely in lines 359-360 (cxf-rt-frontend-jaxrs-2.7.16.jar):

            } else if (responseClass == Void.class || responseClass == Void.TYPE) {
                accepts = Collections.singletonList(MediaType.WILDCARD_TYPE);

which I would like to remove.

As a workaround I'm using my own Void class not to satisfy the above part of the if statement




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