public function getHTTPServerPoolManager(bool $force = false) : CNabuHTTPServerPoolManager
    {
        if ($this->nb_http_server_pool_manager === null || $force) {
            if ($this->nb_http_server_pool_manager instanceof CNabuHTTPServerPoolManager) {
                $this->nb_http_server_pool_manager->finish();
            }
            $this->nb_http_server_pool_manager = new CNabuHTTPServerPoolManager();
            $this->nb_http_server_pool_manager->init();
        }

        return $this->nb_http_server_pool_manager;
    }