safely register a ssefeature in a given configurable context . concode_field_sep String DISABLE_SSE_CLIENT concode_elem_sep String DISABLE_SSE concode_elem_sep MediaType SERVER_SENT_EVENTS_TYPE concode_elem_sep String DISABLE_SSE_SERVER concode_elem_sep long RECONNECT_NOT_SET concode_elem_sep String LAST_EVENT_ID_HEADER concode_elem_sep String SERVER_SENT_EVENTS concode_field_sep boolean configure
T function ( final T arg0 ) { if ( ! arg0 . getConfiguration ( ) . isRegistered ( SseFeature . class ) ) { arg0 . register ( SseFeature . class ) ; } return arg0 ; }