public function findFile($class)
    {
        if (substr($class, -7) !== '\\Module') {
            return false;
        }

        $path = Normalizer::path($class, false) . '.php';
        foreach ($this->paths as $dir) {
            $file = $dir . $path;
            if (is_readable($file)) {
                return $file;
            }
        }

        return false;
    }