public static WebServiceFeature getFeature(Annotation a) {
WebServiceFeature ftr = null;
if (!(a.annotationType().isAnnotationPresent(WebServiceFeatureAnnotation.class))) {
ftr = null;
} else if (a instanceof Addressing) {
Addressing addAnn = (Addressing) a;
try {
ftr = new AddressingFeature(addAnn.enabled(), addAnn.required(),addAnn.responses());
} catch(NoSuchMethodError e) {
//throw error. We can't default to Responses.ALL as we dont know if the user has not used 2.2 annotation with responses.
throw new RuntimeModelerException(ModelerMessages.RUNTIME_MODELER_ADDRESSING_RESPONSES_NOSUCHMETHOD(toJar(Which.which(Addressing.class))));
}
} else if (a instanceof MTOM) {