return "{hasher cache: " + cache + "}";
    }

    @Override
    public HashCode hash(File file) {
        return snapshot(file).getHash();
    }

    @Override
    public HashCode hash(File file, long length, long lastModified) {
        return snapshot(file, length, lastModified).getHash();
    }

    private FileInfo snapshot(File file) {
        FileMetadata fileMetadata = fileSystem.stat(file);

        succeeds taskName

        def archive = file("build/test.${fileExtension}")
        then:
        def firstFileHash = archive.md5Hash

        when:
        file('dir1/file11.txt').makeOlder()
        archive.delete()
        succeeds taskName

        then:
        archive.md5Hash == firstFileHash

        where:
        taskName << ['tar', 'zip']
        taskType = taskName.capitalize()

        if (!cachedFile.isFile()) {
            // Just copy the jar
            GFileUtils.copyFile(source, cachedFile);
        }
        return cachedFile;
    }

    @Override
    public ClasspathFileHasher getFileHasher() {
        return FileSystemLocationSnapshot::getHash;
    }

            FileSystemLocationSnapshot currentSnapshot = (FileSystemLocationSnapshot) current;
            if (previousSnapshot.getHash().equals(currentSnapshot.getHash())) {
                return true;
            } else if (currentSnapshot.getType() != FileType.Directory || previousSnapshot.getType() != FileType.Directory) {

// algorithm.
func (g *gcmAsm) paddedGHASH(hash *[16]byte, data []byte) {
	if siz := len(data) - (len(data) % gcmBlockSize); siz > 0 {
		gcmHash(hash[:], &g.productTable, data[:], siz)
		data = data[siz:]
	}
	if len(data) > 0 {
		var s [16]byte
		copy(s[:], data)
		gcmHash(hash[:], &g.productTable, s[:], len(s))
	}
}

// auth calculates GHASH(ciphertext, additionalData), masks the result with

            logger.warn("Appending input file fingerprints for '{}' to build cache key: {} - {}",
                propertyName, fingerprint.getHash(), fingerprint);
            cacheKeyHasher.putString(propertyName);
            cacheKeyHasher.putHash(fingerprint.getHash());
        });

        beforeExecutionState.getOutputFileLocationSnapshots().keySet().forEach(propertyName -> {

	})
}

func recordAuthenticationLatency(result, jwtIssuerHash string, duration time.Duration) {
	jwtAuthenticatorLatencyMetric.WithLabelValues(result, jwtIssuerHash).Observe(duration.Seconds())
}

func getHash(data string) string {
	if len(data) > 0 {
		return fmt.Sprintf("sha256:%x", sha256.Sum256([]byte(data)))
	}
	return ""
}

        def key = Mock(ModuleComponentResolveMetadata)
        def inputsSnapshot = new StringValueSnapshot("1")
        def hasher = Hashing.newHasher()
        inputsSnapshot.appendToHasher(hasher)
        def keyHash = hasher.hash()
        def cachedResult = Mock(ModuleComponentResolveMetadata)
        Multimap<String, ImplicitInputRecord<?, ?>> implicits = HashMultimap.create()
        def record = Mock(ImplicitInputRecord)

// produces a subtree of indirect nodes to hold the two new entries.
func (ht *HashTrieMap[K, V]) expand(oldEntry, newEntry *entry[K, V], newHash uintptr, hashShift uint, parent *indirect[K, V]) *node[K, V] {
	// Check for a hash collision.
	oldHash := ht.keyHash(unsafe.Pointer(&oldEntry.key), ht.seed)
	if oldHash == newHash {
		// Store the old entry in the new entry's overflow list, then store
		// the new entry.
		newEntry.overflow.Store(oldEntry)

        return new LocalDistribution(distDir, distZip);
    }

    private String rootDirName(String distName, WrapperConfiguration configuration) {
        String urlHash = getHash(Download.safeUri(configuration.getDistribution()).toASCIIString());
        return distName + "/" + urlHash;
    }

    /**
     * This method computes a hash of the provided {@code string}.
     * <p>