Symfony\Component\HttpKernel\Kernel::getContainerClass PHP Method

    protected function getContainerClass()
    {
        return $this->name.ucfirst($this->environment).($this->debug ? 'Debug' : '').'ProjectContainer';
    }

 protected function getContainerClass()
 {
     if (!$this->hasSwitched) {
         return parent::getContainerClass();
     }
     return "{$this->environment}SwitchContainer";
 }