*/
public void init() throws ServletException {
super.init();
try {
StringWriter writer= new StringWriter();
Marshaller.marshal(new NotificationAcknowledgment(), writer);
NOTIFICATION_ACK = writer.toString();
} catch (MarshalException e) {
if (LOG.isFatalEnabled()) {
LOG.fatal("MarshalException caught while initializing servlet: " + e.getLocalizedMessage(), e);
}