code: public void stopPublishingGeolocation()
              throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException, NotALeafNodeException {
          GeoLocation emptyGeolocation = new GeoLocation.Builder().build();
          getNode().publish(new PayloadItem<GeoLocation>(emptyGeolocation));
      }
docs: Send empty geolocation through the PubSub node.
  
  @throws InterruptedException
  @throws NotConnectedException
  @throws XMPPErrorException
  @throws NoResponseException
  @throws NotALeafNodeException