* input.
   */
  @VisibleForTesting(
      )
  static final double HASH_FLOODING_FPP = 0.001;

  /**
   * Maximum allowed length of a hash table bucket before falling back to a j.u.LinkedHashMap-based
   * implementation. Experimentally determined.
   */
  private static final int MAX_HASH_BUCKET_LENGTH = 9;

            }
            this.filter = extensionFilter;

            int hash = 17;
            hash = hash * 31 + CacheUtils.pluginHashCode(plugin);
            hash = hash * 31 + Objects.hashCode(workspace);
            hash = hash * 31 + Objects.hashCode(localRepo);
            hash = hash * 31 + RepositoryUtils.repositoriesHashCode(repositories);
            hash = hash * 31 + Objects.hashCode(extensionFilter);
            this.hashCode = hash;

        }
    }

    public String decodeSimilarDocHash(final String hash) {
        if (hash != null && hash.startsWith(SIMILAR_DOC_HASH_PREFIX) && hash.length() > SIMILAR_DOC_HASH_PREFIX.length()) {
            final byte[] decode = Base64.getUrlDecoder().decode(hash.substring(SIMILAR_DOC_HASH_PREFIX.length()));
            try (BufferedReader reader =

          new Sink(4).putUnencodedChars(s).hash(),
          new Sink(4).putBytes(s.getBytes(UTF_16LE)).hash());
      assertEquals(
          new Sink(4).putUnencodedChars(s).hash(), new Sink(4).putString(s, UTF_16LE).hash());
    }
  }

  public void testFloat() {
    Sink sink = new Sink(4);
    sink.putFloat(Float.intBitsToFloat(0x04030201));
    HashCode unused = sink.hash();
    sink.assertInvariants(4);

    .\msys2_install.exe -y -oC:\; \
    Remove-Item msys2_install.exe; \
    function msys() { C:\msys64\usr\bin\bash.exe @('-lc') + @Args; } \
    msys ' '; \
    msys 'pacman --noconfirm -Syy bsdcpio bsdtar bzip2'; \
    msys 'pacman --noconfirm -Syy coreutils curl dash file filesystem findutils'; \
    msys 'pacman --noconfirm -Syy flex gawk gcc-libs grep gzip inetutils info'; \

   *       y}, if {@code equivalent(x, y)}, then {@code hash(x) == hash(y)}. It is <i>not</i>
   *       necessary that the hash be distributable across <i>inequivalence</i>. If {@code
   *       equivalence(x, y)} is false, {@code hash(x) == hash(y)} may still be true.
   *   <li>{@code hash(null)} is {@code 0}.
   * </ul>
   */
  public final int hash(@CheckForNull T t) {
    if (t == null) {
      return 0;
    }

   *       y}, if {@code equivalent(x, y)}, then {@code hash(x) == hash(y)}. It is <i>not</i>
   *       necessary that the hash be distributable across <i>inequivalence</i>. If {@code
   *       equivalence(x, y)} is false, {@code hash(x) == hash(y)} may still be true.
   *   <li>{@code hash(null)} is {@code 0}.
   * </ul>
   */
  public final int hash(@CheckForNull T t) {
    if (t == null) {
      return 0;
    }

                }
            }

            int hash = 17;
            hash = hash * 31 + groupId.hashCode();
            hash = hash * 31 + artifactId.hashCode();
            hash = hash * 31 + version.hashCode();
            hash = hash * 31 + hash(workspace);
            hash = hash * 31 + localRepo.hashCode();
            hash = hash * 31 + RepositoryUtils.repositoriesHashCode(repositories);

	for _, testcase := range []struct {
		config      string
		expectedErr bool
		hash        string
	}{
		{
			config:      "testdata/config/1.yaml",
			expectedErr: false,
			hash:        "hash:02bf70285dc71f76",
		},
		{
			config:      "testdata/config/2.yaml",
			expectedErr: false,
			hash:        "hash:676d2da00f71f205",
		},
		{
			config:      "testdata/config/invalid.yaml",
			expectedErr: true,

    if (key == null) {
      return null;
    }
    int hash = hash(key);
    return segmentFor(hash).get(key, hash);
  }

  @CanIgnoreReturnValue // TODO(b/27479612): consider removing this
  V get(K key, CacheLoader<? super K, V> loader) throws ExecutionException {
    int hash = hash(checkNotNull(key));
    return segmentFor(hash).get(key, hash, loader);
  }

  @CheckForNull