void function ( ) { ra . unregister ( ) ; }
unregister with the registrar server concode_field_sep PresenceAgent pa concode_elem_sep PrintStream stdout concode_elem_sep BufferedReader stdin concode_elem_sep Log log concode_elem_sep RegisterAgent ra concode_field_sep void onPaNotificationFailure concode_elem_sep void subscribe concode_elem_sep void unregisterall concode_elem_sep void onUaRegistrationSuccess concode_elem_sep void main concode_elem_sep void onPaSubscriptionSuccess concode_elem_sep String readLine concode_elem_sep void printLog concode_elem_sep void printLog concode_elem_sep void onPaSubscriptionTerminated concode_elem_sep void unsubscribe concode_elem_sep void onPaSubscriptionRequest concode_elem_sep void onPaNotificationRequest concode_elem_sep void onUaRegistrationFailure concode_elem_sep void printOut concode_elem_sep void register