/*
* @see org.eclipse.jface.text.source.IAnnotationAccessExtension#isSubtype(java.lang.Object, java.lang.Object)
*/
public boolean isSubtype(Object annotationType, Object potentialSupertype) {
AnnotationTypeHierarchy hierarchy= getAnnotationTypeHierarchy();
return hierarchy.isSubtype(potentialSupertype.toString(), annotationType.toString());
}