core-bundle/src/Framework/ContaoFramework.php
public function getAdapter($class): Adapter
    {
        if (!isset($this->adapterCache[$class])) {
            $this->adapterCache[$class] = new Adapter($class);
        }

        return $this->adapterCache[$class];
    }
public function getAdapter($class): Adapter
    {
        if (!isset($this->adapterCache[$class])) {
            $this->adapterCache[$class] = new Adapter($class);
        }

        return $this->adapterCache[$class];
    }
{@inheritdoc}