[jira] [Created] (CXF-6101) Accept Header not Respected with Response from Custom MessageReader

["Joseph Athman (JIRA)" <ji...@apache.org>]

Joseph Athman created CXF-6101:
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             Summary: Accept Header not Respected with Response from Custom MessageReader
                 Key: CXF-6101
                 URL: https://issues.apache.org/jira/browse/CXF-6101
             Project: CXF
          Issue Type: Bug
          Components: JAX-RS
    Affects Versions: 3.0.2
            Reporter: Joseph Athman
            Priority: Minor


I have created a custom MessageBodyReader class which implements the readFrom method and attempts to deserialize a JSON message using a specialized deserializer. If this fails for some reason, I am throwing a WebApplicationException with a Response build like this:

{{Response.status(HttpStatus.BAD_REQUEST_400).entity(myCustomResponseObject).build()}}

On the incoming request there is an Accept header which is respected when processing proceeds normally, but this header is not respected if I throw an exception in the readFrom method (content type of the response is always "text/xml"). The problem seems to be in the {{JAXRSInInterceptor}} class which creates a default message which does not have the exchange set on it, so when the createMessage method is invoked it is unable to find the correct content type so it will always default to "text/xml". Contrast the way this method works with how the {{ServiceInvokerInterceptor}} class creates a new message, it sets the exchange on the new message first before creating it.

I realize I could set an explicit media type when creating the response but this seems to defeat the purpose of server side content negotiation. 



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