I am using EWS 1.2 Java client API for getting calendar events. I am able to get Recurring information of the event which is created through API's 

appointment.save(), but not able to get recurring information of the event created in OWA interface, I get following error during the bind:

===================================

Exception: Connection not established

microsoft.exchange.webservices.data.EWSHttpException: Connection not established

at microsoft.exchange.webservices.data.HttpClientWebRequest.throwIfConnIsNull(HttpClientWebRequest.java:394)

at microsoft.exchange.webservices.data.HttpClientWebRequest.getResponseHeaders(HttpClientWebRequest.java:280)

at microsoft.exchange.webservices.data.ExchangeServiceBase.processHttpResponseHeaders(ExchangeServiceBase.java:1045)

at microsoft.exchange.webservices.data.SimpleServiceRequestBase.internalExecute(SimpleServiceRequestBase.java:58)

at microsoft.exchange.webservices.data.MultiResponseServiceRequest.execute(MultiResponseServiceRequest.java:144)

at microsoft.exchange.webservices.data.ExchangeService.internalBindToItems(ExchangeService.java:1364)

at microsoft.exchange.webservices.data.ExchangeService.bindToItem(ExchangeService.java:1407)

at microsoft.exchange.webservices.data.ExchangeService.bindToItem(ExchangeService.java:1430)

at microsoft.exchange.webservices.data.Appointment.bind(Appointment.java:70)

at microsoft.exchange.webservices.data.Appointment.bindToRecurringMaster(Appointment.java:176)

at microsoft.exchange.webservices.data.Appointment.bindToRecurringMaster(Appointment.java:152)

============================

This happens if I use: Appointment.bindToRecurringMaster or Item.bind(service, id, appointmentProps) or findAppointments(). 

Works fine for events which doesn't have recurring. Only issue with events containing recurrence created through OWA. These are the propertySet:

new PropertySet(BasePropertySet.IdOnly,

                                ItemSchema.Subject,

                                AppointmentSchema.AppointmentType,

                                AppointmentSchema.DeletedOccurrences,

                                AppointmentSchema.FirstOccurrence,

                                AppointmentSchema.LastOccurrence,

                                AppointmentSchema.IsRecurring,

                                AppointmentSchema.Location,

                                AppointmentSchema.ModifiedOccurrences,

                                AppointmentSchema.OriginalStart,

                                AppointmentSchema.Recurrence,

                                AppointmentSchema.Start,

                                AppointmentSchema.End);

If I remove Recurrence it gives the response. 

Thanks.

I am using EWS 1.2 Java client API for getting calendar events. I am able to get Recurring information of the event which is created through API's 

appointment.save(), but not able to get recurring information of the event created in OWA interface, I get following error during the bind:

===================================

Exception: Connection not established

microsoft.exchange.webservices.data.EWSHttpException: Connection not established

at microsoft.exchange.webservices.data.HttpClientWebRequest.throwIfConnIsNull(HttpClientWebRequest.java:394)

at microsoft.exchange.webservices.data.HttpClientWebRequest.getResponseHeaders(HttpClientWebRequest.java:280)

at microsoft.exchange.webservices.data.ExchangeServiceBase.processHttpResponseHeaders(ExchangeServiceBase.java:1045)

at microsoft.exchange.webservices.data.SimpleServiceRequestBase.internalExecute(SimpleServiceRequestBase.java:58)

at microsoft.exchange.webservices.data.MultiResponseServiceRequest.execute(MultiResponseServiceRequest.java:144)

at microsoft.exchange.webservices.data.ExchangeService.internalBindToItems(ExchangeService.java:1364)

at microsoft.exchange.webservices.data.ExchangeService.bindToItem(ExchangeService.java:1407)

at microsoft.exchange.webservices.data.ExchangeService.bindToItem(ExchangeService.java:1430)

at microsoft.exchange.webservices.data.Appointment.bind(Appointment.java:70)

at microsoft.exchange.webservices.data.Appointment.bindToRecurringMaster(Appointment.java:176)

at microsoft.exchange.webservices.data.Appointment.bindToRecurringMaster(Appointment.java:152)

============================

This happens if I use: Appointment.bindToRecurringMaster or Item.bind(service, id, appointmentProps) or findAppointments(). 

Works fine for events which doesn't have recurring. Only issue with events containing recurrence created through OWA. These are the propertySet:

new PropertySet(BasePropertySet.IdOnly,

                                ItemSchema.Subject,

                                AppointmentSchema.AppointmentType,

                                AppointmentSchema.DeletedOccurrences,

                                AppointmentSchema.FirstOccurrence,

                                AppointmentSchema.LastOccurrence,

                                AppointmentSchema.IsRecurring,

                                AppointmentSchema.Location,

                                AppointmentSchema.ModifiedOccurrences,

                                AppointmentSchema.OriginalStart,

                                AppointmentSchema.Recurrence,

                                AppointmentSchema.Start,

                                AppointmentSchema.End);

If I remove Recurrence it gives the response. 

Thanks.

I am also facing the same problem.. If anyone can help, it would be helpful. I can see the response xml has the data, but while parsing the xml the error is generated in getResponseCode() in HttpClientWebRequest

Was anyone able to solve this?

Hi, I was experiencing this same problem and after reading another site (http://code.msdn.microsoft.com/Exchange-EWS-Java-API-12-1a5a1143/view/Discussions#content) and discovering that the "Connection not established" error is not the true error, I was able to trace down the true error.  It turns out the datetime values for the recurring meeting dates are passed through the ExchangeServiceBase.convertStartDateToUnspecifiedDateTime() method which says it supports 3 different formats but really only supports one format (one that ends in Z).  The datetimes are instead formatted like 2014-06-11-5:00 so the DateFormat object threw an exception trying to parse it.  The code below is how I fixed it to function as the comments say it should:

  protected Date convertStartDateToUnspecifiedDateTime(String value) throws ParseException {
    if (value == null || value.isEmpty()) {
      return null;
    } else {
      DateFormat df = null;
      if (value.contains("Z")) {
        df = new SimpleDateFormat("yyyy-MM-dd'Z'");
      } else if (value.matches("/\\-[0-9]{2}:[0-9]{2}^/")) {
        df = new SimpleDateFormat("yyyy-MM-ddXXX");
      } else {
        df = new SimpleDateFormat("yyyy-MM-dd");
      }
      return df.parse(value);
    }
  }

Hope this helps save others headaches.

Even I am facing the same problem.Thanks a lot for your comment.