In the method AnnotationServiceFactory.create(Class, String, String, Map), the code that checks if a SOAPBinding annotation exists (and sets the style and use properties accordingly) doesn't look for the annotation in the endpointInterface. A solution would be to move the code below the part that sets the endpoint interface to either the supplied class or that class' @WebService.endpointInterface annotation and do the check on that class instead. A workaround is to put the @SOAPBinding on the implementation, but that is illegal according to the spec.