code: public void starting() throws Exception {
  		this.logger.fine( "iPojo registers REST and icons servlets related to Roboconf's DM." );
  
  		// Register the servlet
  		Dictionary<String,String> initParams = new Hashtable<> ();
  		initParams.put( "servlet-name", "Roboconf Web Extension (Kibana)" );
  
  		this.servlet = new KibanaExtensionServlet( this.manager );
  		this.servlet.setAgentDashBoardUrl( this.agentDashBoardUrl );
  		this.servlet.setAppDashBoardUrl( this.appDashBoardUrl );
  		this.httpService.registerServlet( CONTEXT, this.servlet, initParams, null );
  
  		// Register a new preference
  		this.manager.preferencesMngr().addToList( IPreferencesMngr.WEB_EXTENSIONS, CONTEXT );
  	}
docs: The method to use when all the dependencies are resolved.
  <p>
  It means iPojo guarantees that both the manager and the HTTP
  service are not null.
  </p>
  
  @throws Exception in case of critical error