@Override
    public void appendToHasher(Hasher hasher) {
        hasher.putString(LambdaImplementationSnapshot.class.getName());
        hasher.putString(classIdentifier);
        hasher.putHash(classLoaderHash);
        hasher.putString(functionalInterfaceClass);
        hasher.putString(implClass);
        hasher.putString(implMethodName);
        hasher.putString(implMethodSignature);
        hasher.putInt(implMethodKind);
    }

var defaultLeaf = hasher([]byte{0x0})

const (
	hashLength = 8
)

type hash [hashLength]byte

func bitIsSet(bits []byte, i int) bool {
	return bits[i/8]&(1<<uint(7-i%8)) != 0
}

func hasher(data ...[]byte) []byte {
	hasher := murmur3.New64()
	for i := 0; i < len(data); i++ {
		_, _ = hasher.Write(data[i])
	}
	result := hasher.Sum(nil)
	return result
}

// for sorting

    @Override
    boolean filter(ZipEntryContext context) {
        return !context.getEntry().isDirectory();
    }

    @Override
    public void appendConfigurationToHasher(Hasher hasher) {
        super.appendConfigurationToHasher(hasher);
        hasher.putString(getClass().getName());
    }

    @Override
    Optional<HashCode> tryHash(RegularFileSnapshotContext snapshotContext) {
        return Optional.of(snapshotContext)

        return entries;
    }

    @Override
    public void appendToHasher(Hasher hasher) {
        hasher.putString("Map");
        hasher.putInt(entries.size());
        for (MapEntrySnapshot<T> entry : entries) {
            entry.getKey().appendToHasher(hasher);
            entry.getValue().appendToHasher(hasher);
        }
    }

    @Override
    public boolean equals(Object obj) {

    }

    @Override
    public void appendConfigurationToHasher(Hasher hasher) {
        super.appendConfigurationToHasher(hasher);
        hasher.putString(getClass().getName());
        propertiesFilePatterns.forEach(hasher::putString);
        propertiesFileFilters.values().forEach(resourceEntryFilter -> resourceEntryFilter.appendConfigurationToHasher(hasher));
    }

    @Override

        this.resourceSnapshotterCacheService = resourceSnapshotterCacheService;
        Hasher hasher = Hashing.newHasher();
        appendConfigurationToHasher(hasher);
        this.delegateConfigurationHash = hasher.hash();
    }

    @Override
    public void appendConfigurationToHasher(Hasher hasher) {
        delegate.appendConfigurationToHasher(hasher);
    }

    @Nullable
    @Override

    super(checkNotNull(out));
    this.hasher = checkNotNull(hashFunction.newHasher());
  }

  @Override
  public void write(int b) throws IOException {
    hasher.putByte((byte) b);
    out.write(b);
  }

  @Override
  public void write(byte[] bytes, int off, int len) throws IOException {
    hasher.putBytes(bytes, off, len);
    out.write(bytes, off, len);
  }

  /**

        super(classIdentifier);
        this.classLoaderHash = classLoaderHash;
    }

    @Override
    public void appendToHasher(Hasher hasher) {
        hasher.putString(ClassImplementationSnapshot.class.getName());
        hasher.putString(classIdentifier);
        hasher.putHash(classLoaderHash);
    }

    @Override
    protected boolean isSameSnapshot(@Nullable Object o) {
        return equals(o);
    }

        this.delegate = delegate;
        this.resourceSnapshotterCacheService = resourceSnapshotterCacheService;
        Hasher hasher = Hashing.newHasher();
        delegate.appendConfigurationToHasher(hasher);
        this.delegateConfigurationHash = hasher.hash();
    }

    @Nullable
    @Override
    public HashCode hash(RegularFileSnapshotContext fileSnapshotContext) throws IOException {

            default:
                throw new IllegalArgumentException();
        }
    }

    @Override
    public void appendConfigurationToHasher(Hasher hasher) {
        delegate.appendConfigurationToHasher(hasher);
        hasher.putString(getClass().getName());
    }

    @Nullable
    @Override
    public HashCode hash(FileSystemLocationSnapshot snapshot) throws IOException {