code: @Override
      public void handleServerEvent(ISFSEvent event) throws SFSException {
          User sfsUser = (User)event.getParameter(SFSEventParam.USER);
          ApiUser apiUser = (ApiUser) sfsUser.getProperty(APIKey.USER);
          if(apiUser.getBuddyProperties() != null) 
              updateBuddyProperties(sfsUser.getBuddyProperties(), 
                      apiUser.getBuddyProperties());
          removeAddedBuddies(sfsUser);
          super.handleServerEvent(event);
      }
docs: /* (non-Javadoc)
  @see com.tvd12.ezyfox.sfs2x.serverhandler.UserZoneEventHandler#handleServerEvent(com.smartfoxserver.v2.core.ISFSEvent)