public function createFallbackPathEntry(string $path)
    {
        $entryIdentifier = md5($path);
        if (!isset($this->fallbackClassPaths[$entryIdentifier])) {
            $this->fallbackClassPaths[$entryIdentifier] = [
                'path' => $path,
                'mappingType' => self::MAPPING_TYPE_PSR4
            ];
        }
    }