docs: public GregorianCalendar getValueAsCalendar() {
  		if (getValue() == null) {
  			return null;
  		}
  		GregorianCalendar cal;
  		if (getTimeZone() != null) {
  			cal = new GregorianCalendar(getTimeZone());
  		} else {
  			cal = new GregorianCalendar();
  		}
  		cal.setTime(getValue());
  		return cal;
  	}