How to read real time cancel appointment in calendar using Exchanged server managed API

How to read real-time cancel appointment in the calendar using Exchanged server managed API
Getting below error:
microsoft.exchange.webservices.data.core.exception.service.remote.ServiceResponseException: The specified object was not found in the store.
        at microsoft.exchange.webservices.data.core.response.ServiceResponse.internalThrowIfNecessary(ServiceResponse.java:278)
        at microsoft.exchange.webservices.data.core.response.ServiceResponse.throwIfNecessary(ServiceResponse.java:267)
        at microsoft.exchange.webservices.data.core.request.MultiResponseServiceRequest.execute(MultiResponseServiceRequest.java:165)
        at microsoft.exchange.webservices.data.core.ExchangeService.internalBindToItems(ExchangeService.java:1343)
        at microsoft.exchange.webservices.data.core.ExchangeService.bindToItem(ExchangeService.java:1378)
        at microsoft.exchange.webservices.data.core.ExchangeService.bindToItem(ExchangeService.java:1395)
        at microsoft.exchange.webservices.data.core.service.item.Appointment.bind(Appointment.java:118)
        at microsoft.exchange.webservices.data.core.service.item.Appointment.bind(Appointment.java:133)
        at com.docasap.ihub.exchangeserverengine.handler.e2d.StreamingAppointmentsHandler.notificationEventDelegate(StreamingAppointmentsHandler.java:96)
        at microsoft.exchange.webservices.data.notification.StreamingSubscriptionConnection.issueNotificationEvents(StreamingSubscriptionConnection.java:524)
        at microsoft.exchange.webservices.data.notification.StreamingSubscriptionConnection.handleServiceResponseObject(StreamingSubscriptionConnection.java:418)
        at microsoft.exchange.webservices.data.notification.StreamingSubscriptionConnection.handleResponseObject(StreamingSubscriptionConnection.java:562)
        at microsoft.exchange.webservices.data.core.request.HangingServiceRequestBase.parseResponses(HangingServiceRequestBase.java:218)
        at microsoft.exchange.webservices.data.core.request.HangingServiceRequestBase.access$000(HangingServiceRequestBase.java:60)
        at microsoft.exchange.webservices.data.core.request.HangingServiceRequestBase$1.run(HangingServiceRequestBase.java:330)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622)
        at java.lang.Thread.run(Thread.java:748)

I am making subscription using below code:

FolderId folderId = new FolderId(WellKnownFolderName.Calendar, new Mailbox("mytestemail@test.com"));
            logger.info("folderId:: "+folderId.getUniqueId());
            List<FolderId> folders = new ArrayList<FolderId>();
            folders.add(folderId);
            StreamingSubscriptionConnection ssc = null;
            try {
                  StreamingSubscription streamSub = service.subscribeToStreamingNotifications(folders,                               
                              EventType.Created, EventType.Deleted,
                              EventType.Modified, EventType.Moved, EventType.Copied, EventType.NewMail); //EventType.FreeBusyChanged,
                  ssc = new StreamingSubscriptionConnection(service, subTimeout);
                  ssc.addSubscription(streamSub);
                  ssc.addOnNotificationEvent(new StreamingAppointmentsHandler());
                  ssc.addOnDisconnect(new SubscriptionRenewalHandler());
                  ssc.addOnSubscriptionError(new SubscriptionRenewalHandler());
                  ssc.open();
                  logger.info("Is subscription done: "+ssc.getIsOpen());
------------------------------
Reading realtime as below:
ExchangeService service = args.getSubscription().getService();
                  for (NotificationEvent event : args.getEvents()) {
                        if (event instanceof ItemEvent) {
                              logger.info("Captured event: " + event.getEventType().name());
                              ItemEvent itemEvent = (ItemEvent) event;
                              logger.info("Event Item ID: "+itemEvent.getItemId().getUniqueId());
                              switch (itemEvent.getEventType()) {
case Deleted:
                                    logger.info("Deleted ");
                              case Modified:
                                    logger.info("Modified ");
                              case Moved:
Appointment changedAppt = Appointment.bind(service, itemEvent.getItemId());
                                          logger.info("Appointment IsCancelled: "+ changedAppt.getIsCancelled());
                                          logger.info("Appointment Subject: "+ changedAppt.getSubject());
                                          logger.info("Appointment Start: "+ changedAppt.getStart());
                                          logger.info("Appointment End: "+ changedAppt.getEnd());
                                          logger.info("Appointment State: "+ changedAppt.getAppointmentState());