public static Attribute attributeFromAnnotationValue(ProcessingEnvironment env,ExecutableElement meth,AnnotationValue av){
  return av.accept(new AttributeCreator(env,meth),null);
}

public static Attribute attributeFromAnnotationValue ( ProcessingEnvironment env , ExecutableElement meth , AnnotationValue av ) { return av . accept ( new AttributeCreator ( env , meth ) , null ) ; }
returns a newly created attribute corresponding to an argument annotationvalue .
