}

    @Override
    public int indexIn(CharSequence sequence) {
      return (sequence.length() == 0) ? -1 : 0;
    }

    @Override
    public int indexIn(CharSequence sequence, int start) {
      int length = sequence.length();
      checkPositionIndex(start, length);
      return (start == length) ? -1 : start;
    }

    @Override
    public int lastIndexIn(CharSequence sequence) {

    boolean containsValue(Object value) {
      try {
        if (count != 0) { // read-volatile
          AtomicReferenceArray<E> table = this.table;
          int length = table.length();
          for (int i = 0; i < length; ++i) {
            for (E e = table.get(i); e != null; e = e.getNext()) {
              V entryValue = getLiveValue(e);
              if (entryValue == null) {
                continue;

                    String moduleName = modulePath;

                    if (moduleName.endsWith("/") || moduleName.endsWith("\\")) {
                        moduleName = moduleName.substring(0, moduleName.length() - 1);
                    }

                    int lastSlash = moduleName.lastIndexOf('/');

                    if (lastSlash < 0) {
                        lastSlash = moduleName.lastIndexOf('\\');

    }

    private void assertPathSuffixEquals(String expected, Object actual) {
        String a = actual.toString();
        a = a.substring(a.length() - expected.length()).replace('\\', '/');
        assertEquals(expected, a);
    }

    private void assertPathWithNormalizedFileSeparators(Object value) {

        assertEquals(
            method.getReturnType(), TypeToken.of(method.getGenericReturnType()).getRawType());
        for (int i = 0; i < method.getParameterTypes().length; i++) {
          assertEquals(
              method.getParameterTypes()[i],
              TypeToken.of(method.getGenericParameterTypes()[i]).getRawType());
        }
      }
    }
  }

   */
  @SuppressWarnings("nullness") // TODO: b/316358623 - Remove after checker fix.
  public static <E extends @Nullable Object> HashSet<E> newHashSet(E... elements) {
    HashSet<E> set = newHashSetWithExpectedSize(elements.length);
    Collections.addAll(set, elements);
    return set;
  }

  /**
   * Creates a <i>mutable</i> {@code HashSet} instance containing the given elements. A very thin

            } else {
                // backward compatibility
                final int length = spaceStr.length();
                spaceChars = new int[length];
                for (int i = 0; i < length; i++) {
                    spaceChars[i] = spaceStr.codePointAt(i);
                }
            }
            propMap.put(key, spaceChars);
        }

                  @Override
                  protected Set<AnEnum> create(AnEnum[] elements) {
                    AnEnum[] otherElements = new AnEnum[elements.length - 1];
                    System.arraycopy(elements, 1, otherElements, 0, otherElements.length);
                    return Sets.immutableEnumSet(elements[0], otherElements);
                  }
                })
            .named("Sets.immutableEnumSet")

      this.values = new @Nullable Object[initialCapacity];
    }

    private void ensureCapacity(int minCapacity) {
      if (minCapacity > keys.length) {
        int newCapacity = ImmutableCollection.Builder.expandedCapacity(keys.length, minCapacity);
        this.keys = Arrays.copyOf(keys, newCapacity);
        this.values = Arrays.copyOf(values, newCapacity);
      }
    }

    /**

    assertFalse(Iterators.elementsEqual(b.iterator(), a.iterator()));

    // Different lengths.
    a = asList(4, 8, 15, 16, 23);
    b = asList(4, 8, 15, 16, 23, 42);
    assertFalse(Iterators.elementsEqual(a.iterator(), b.iterator()));
    assertFalse(Iterators.elementsEqual(b.iterator(), a.iterator()));

    // Different lengths, one is empty.
    a = Collections.emptySet();
    b = asList(4, 8, 15, 16, 23, 42);