3.0 exception mapping issue if creating base exception mapper class

[tomstark]

Hi,

I am trying to upgrade from CXF 2.7.5 to 3.0.1 but ran into an issue at
runtime with the exception mapping.  Our mappers are something like this: 
(I've created the fictious class"SomeError" for this example)

public abstract class AbstractExceptionMapper<E extends Throwable>
implements ExceptionMapper<E>
{

   @Override
   public final Response toResponse(final E exception)
   {
      final SomeError error = getSomeError(exception);
      final ResponseBuilder bldr = Response.status(error.getStatusCode());
      bldr.entity(error).type(support.getErrorMediaType());
      return bldr.build();
   }

   protected abstract SomeError getSomeError(E exception);
}

public class JsonProcessingExceptionToSomeErrorMapper extends
      AbstractExceptionMapper<JsonProcessingException>
{

   @Override
   protected SomeError getSomeError(final JsonProcessingException exception)
   {
      return ExceptionToSomeError.toSomeError(exception);
   }
}

The class ExceptionToSomeError performs all of the real mapping depending on
the real exception being thrown.

There are several exception mapper classes all being injected into the
jaxrs:provider in the spring config that all extend the base class
AbstractExceptionMapper.

This worked fine in CXF 2.7.5.  However, in 3.0.1, it appears the code does
not deal well with the class implementing the ExceptionMapper being a base
class.  When it attempts to find the correct mapper class based on the
exception, mapper list is not sorted correctly and thus the first class in
the list is always picked which results in a ClassCastException being thrown
for all exception type except the first one in the list.

I'm looking for a little guidance here as to how to approach this issue.  Is
this a bug in CXF 3.0?

thanks.




--
View this message in context: 
http://cxf.547215.n5.nabble.com/3-0-exception-mapping-issue-if-creating-base-exception-mapper-class-tp5747255.html
Sent from the cxf-user mailing list archive at Nabble.com.