Andrei Shakirin created CXF-4800:
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             Summary: Exception mapper on the client in case of method Response 
retun value
                 Key: CXF-4800
                 URL: https://issues.apache.org/jira/browse/CXF-4800
             Project: CXF
          Issue Type: Improvement
          Components: JAX-RS
    Affects Versions: 2.7.2
            Reporter: Andrei Shakirin
            Assignee: Andrei Shakirin


TestCase:
JAX-RS annotated business method returns Response.
ExceptionMapper is registered on the client side.

Current behavior: If method throws RuntimeException, exception mapper is 
invoked for all methods except returning Response ones.

Desired behavior: Invoke exception mapper for methods returning Response as 
well, however only for "bad responses" status is >= 300. If exception mapper 
returns null instead exception, business method should be invoked with "bad 
response".

The reason: as far as user registers exception mapper on the client side (it is 
not mandatory), it makes sense to handle all errors in consistent way via 
exception mapper. In some special cases, when user would like to process "bad" 
HTTP Response in the business method, he can return null instead exception in 
exception mapper.


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