code: @Override
      public Object addingService(ServiceReference reference)
      {
          LOGGER.entering(CLASS_NAME, "addingService", reference);
  
          ServiceInfo serviceInfo = (ServiceInfo)context.getService(reference);
  
          serviceAgent.register(serviceInfo);
  
          LOGGER.exiting(CLASS_NAME, "addingService", serviceInfo);
  
          return serviceInfo;
      }
docs: Obtain the instance of {@link ServiceInfo} from the OSGi service
  reference and register it with the {@link ServiceAgent}, effectively
  registering the SLP service URL.
  
  @param reference The reference to the instance of {@link ServiceInfo}.
  @return The instance of {@link ServiceInfo}.
  @see org.osgi.util.tracker.ServiceTracker#addingService(ServiceReference)
  @see org.livetribe.slp.sa.ServiceAgent#register(org.livetribe.slp.ServiceInfo)