Michael Anthony Knyszek <******@****.***> 1717451199 +0000

Harshavardhana <******@****.***> 1653656419 -0700

        return zipEntryContext.getEntry().withInputStream(Hashing::hashStream);
    }

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

// Map.Lookup require updates to the hasher, so a full Mutex lock (not a
// read-lock) is require around all Map operations if a shared
// hasher is accessed from multiple threads.
//
// If SetHasher is not called, the Map will create a private hasher at
// the first call to Insert.
func (m *Map) SetHasher(hasher Hasher) {
	m.hasher = hasher
}

// Delete removes the entry with the given key, if any.

            }
            Hasher hasher = Hashing.newHasher();
            hasher.putHash(DIR_SIGNATURE);
            for (FileSystemLocationSnapshot child : children) {
                hasher.putString(child.getName());
                hasher.putHash(child.getHash());
            }
            return new DirectorySnapshot(absolutePath, name, accessType, hasher.hash(), children);
        }
    }

 * <h3>Memory considerations</h3>
 * <p>
 * Hashes by default are stored in {@link ByteArrayBackedHashCode a byte array}.
 * For a 128-bit hash this results in 64 bytes of memory used for each {@code HashCode}.
 * This implementation also requires GC to track two separate objects (the {@code HashCode} object and its {@code byte[]}).
 * <p>
 * Because Gradle uses a lot of MD5 hashes, for 128-bit hashes we have a more efficient implementation.

        this.rootHashes = rootHashes;
    }

    @Override
    public HashCode getHash() {
        if (hash == null) {
            Hasher hasher = Hashing.newHasher();
            hashingStrategy.appendToHasher(hasher, fingerprints.values());
            hash = hasher.hash();
        }
        return hash;
    }

    @Override
    public boolean isEmpty() {

        def file = file('foo') << contents
        def delegate = Mock(ResourceHasher)
        def hasher = LineEndingNormalizingResourceHasher.wrap(delegate, LineEndingSensitivity.NORMALIZE_LINE_ENDINGS)

        when:
        hasher.hash(snapshotContext(file))

        then:
        0 * delegate._

        when:
        hasher.hash(zipContext(file))

        then:
        0 * delegate._

        where:

    }

    /**
     * Returns empty if the file is detected to be a binary file
     */
    private Optional<HashCode> hash(InputStream inputStream) throws IOException {
        PrimitiveHasher hasher = Hashing.newPrimitiveHasher();

        hasher.putHash(SIGNATURE);

        try (BufferedInputStream input = new BufferedInputStream(CloseShieldInputStream.wrap(inputStream), BUFFER_SIZE)) {
            int peekAhead = -1;

  @Override
  @CanIgnoreReturnValue
  public final Hasher putByte(byte b) {
    buffer.put(b);
    munchIfFull();
    return this;
  }

  @Override
  @CanIgnoreReturnValue
  public final Hasher putShort(short s) {
    buffer.putShort(s);
    munchIfFull();
    return this;
  }

  @Override
  @CanIgnoreReturnValue
  public final Hasher putChar(char c) {
    buffer.putChar(c);