protected function retrieveInstalledBundles()
    {
        $finder = new Finder();
        $autoloaders = $finder->files()->depth(0)->name('*.json')->in($this->autoloadersPath);
        foreach ($autoloaders as $autoloader) {
            $bundleName = strtolower(basename($autoloader->getFilename(), '.json'));
            $jsonAutoloader = new JsonAutoloader($bundleName, (string)$autoloader);
            $this->installedBundles[$bundleName] = $jsonAutoloader;
        }
    }