Конвертация java.util.Date в javax.xml.datatype.XMLGregorianCalendar

private XMLGregorianCalendar convertDateToXMLGregorianCalendar(Date date) throws Throwable {
 GregorianCalendar gc = new GregorianCalendar();
 gc.setTime(date);
 return DatatypeFactory.newInstance().newXMLGregorianCalendar(gc);
}