code: @Override
      public void addClientBehaviorRenderer(String type, ClientBehaviorRenderer renderer)
      {
          if (type == null)
          {
              throw new NullPointerException("client behavior renderer type must not be null");
          }
          if ( renderer == null)
          {
              throw new NullPointerException("client behavior renderer must not be null");
          }
          
          _clientBehaviorRenderers.put(type, renderer);
      }
docs: ~ Methods ------------------------------------------------------------------------------------