if (appointment.getOptionalAttendees() != null) { for (final Attendee exchangeAttendee : appointment.getOptionalAttendees()) { attendees.add(convertToPersonDto(exchangeAttendee, true));
if (appointment.getOptionalAttendees() != null) { for (final Attendee exchangeAttendee : appointment.getOptionalAttendees()) { attendees.add(convertToPersonDto(exchangeAttendee, true));