FOF30\Platform\Joomla\Platform::getUser PHP Method

    public function getUser($id = null)
    {
        // If I'm in CLI and I have an ID, let's load the User directly, otherwise JFactory will check the session
        // (which doesn't exists in CLI)
        if ($this->isCli() && $id) {
            return \JUser::getInstance($id);
        }
        return \JFactory::getUser($id);
    }

 public function getUser($id = null)
 {
     if (isset(static::$user)) {
         return static::$user;
     }
     return parent::getUser($id);
 }