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From "Hans Weisheimer (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CXF-5534) ProviderFactory returns incorrect ExceptionMapper when no exact match is registered
Date Thu, 30 Jan 2014 20:10:09 GMT
Hans Weisheimer created CXF-5534:
------------------------------------

             Summary: ProviderFactory returns incorrect ExceptionMapper when no exact match
is registered
                 Key: CXF-5534
                 URL: https://issues.apache.org/jira/browse/CXF-5534
             Project: CXF
          Issue Type: Bug
          Components: JAX-RS
    Affects Versions: 2.7.8
            Reporter: Hans Weisheimer
            Priority: Minor


The JAX-RS 1.1 spec says:

When choosing an exception mapping provider to map an exception, an implementation MUST use
the provider whose generic type is the nearest superclass of the exception.

In 2.7.0, this was working per the spec.  In 2.7.8 (likely starting with 2.7.6, but not tested),
the FIRST ExceptionMapper provider is returned when there is no exact match.  This usually
results in a ClassCastException.

In the attached test, a NullPointerException should map to the registered ExceptionMapper<RuntimeException>
provider, but it does not.



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