public static StructuredEvent getInvalidStructuredEvent(ORB orb) {
if (invalidStructuredEvent_ == null) {
synchronized(NotificationTestUtils.class.getName()) {
if (invalidStructuredEvent_ == null) {
FixedEventHeader _fixedHeader = new FixedEventHeader();
_fixedHeader.event_name = "";
_fixedHeader.event_type = new EventType("","");
EventHeader _header = new EventHeader(_fixedHeader, new Property[0]);
invalidStructuredEvent_ =