*
* @return corresponding feature for the annotation
* null, if the annotation is nota feature annotation
*/
public static WebServiceFeature getFeature(Annotation a) {
WebServiceFeature ftr;
if (!(a.annotationType().isAnnotationPresent(WebServiceFeatureAnnotation.class))) {
ftr = null;
} else if (a instanceof Addressing) {
Addressing addAnn = (Addressing) a;
try {