public DefaultFileSystemLocationFingerprint(String normalizedPath, FileType type, HashCode contentHash) {
        this.normalizedContentHash = hashForType(type, contentHash);
        this.normalizedPath = normalizedPath;
    }

    private static HashCode hashForType(FileType fileType, HashCode hash) {
        switch (fileType) {
            case Directory:
                return DIR_SIGNATURE;
            case Missing: