public UISelectItems getCourseGroupItems() throws FenixFilterException, FenixServiceException {
public UISelectItems getCourseGroupItems() {
    public UISelectItems getCourseGroupItems() throws FenixFilterException, FenixServiceException {        if (courseGroupItems == null) {            courseGroupItems = new UISelectItems();            courseGroupItems.setValue(readParentCourseGroups(getSelectedCurricularRuleType()));        }        return courseGroupItems;    }