return copyOf(elements);
  }

  @JsMethod
  public static <E> ImmutableSet<E> copyOf(E[] elements) {
    checkNotNull(elements);
    switch (elements.length) {
      case 0:
        return of();
      case 1:
        return of(elements[0]);
      default:
        return create(elements);
    }
  }

  public static <E> ImmutableSet<E> copyOf(Collection<? extends E> elements) {

    switch (mode) {
      case UNNECESSARY:
        checkRoundingUnnecessary(x == floorPow);
      // fall through
      case FLOOR:
      case DOWN:
        return logFloor;
      case CEILING:
      case UP:
        return logFloor + lessThanBranchFree(floorPow, x);
      case HALF_DOWN:
      case HALF_UP:
      case HALF_EVEN:

    int logFloor = x.bitLength() - 1;
    switch (mode) {
      case UNNECESSARY:
        checkRoundingUnnecessary(isPowerOfTwo(x)); // fall through
      case DOWN:
      case FLOOR:
        return logFloor;

      case UP:
      case CEILING:
        return isPowerOfTwo(x) ? logFloor : logFloor + 1;

      case HALF_DOWN:
      case HALF_UP:
      case HALF_EVEN:
        if (logFloor < SQRT2_PRECOMPUTE_THRESHOLD) {

      return BoundType.OPEN;
    }

    @Override
    Cut<C> withLowerBoundType(BoundType boundType, DiscreteDomain<C> domain) {
      switch (boundType) {
        case CLOSED:
          return this;
        case OPEN:
          C previous = domain.previous(endpoint);
          return (previous == null) ? Cut.belowAll() : new AboveValue<>(previous);
      }
      throw new AssertionError();
    }

        Operation op = operations[random.nextInt(operations.length)];
        switch (op) {
          case ADD:
            {
              int delta = random.nextInt(10);
              multiset.add(key, delta);
              deltas[keyIndex] += delta;
              break;
            }
          case SET_COUNT:
            {
              int newValue = random.nextInt(3);

                    return "aes";
                case FessConfig.APP_CIPHER_KEY:
                    return "___change__me___";
                case FessConfig.APP_ENCRYPT_PROPERTY_PATTERN:
                    return ".*password|.*key|.*token|.*secret";
                case FessConfig.APP_EXTENSION_NAMES:
                    return "jpg,jpeg,gif,png";

                case FessConfig.JOB_MAX_CRAWLER_PROCESSES:

  }

  private void doEnterScenarioSetUp() {
    switch (scenario) {
      case SATISFIED_AND_UNOCCUPIED_BEFORE_ENTERING:
        enterSatisfyGuardAndLeaveInCurrentThread();
        break;
      case UNSATISFIED_AND_UNOCCUPIED_BEFORE_ENTERING:
        break;
      case SATISFIED_AND_OCCUPIED_BEFORE_ENTERING:
        enterSatisfyGuardAndLeaveInCurrentThread();

            String result = processResponseType(type);
            assertNotNull(result);

            switch (type) {
            case METADATA:
                assertEquals("metadata", result);
                break;
            case LOGOUT:
                assertEquals("logout", result);
                break;
            default:
                fail("Unexpected enum value: " + type);

      switch (c) {
        case '\t':
        case '\n':
        case '\013':
        case '\f':
        case '\r':
        case ' ':
        case '\u0085':
        case '\u1680':
        case '\u2028':
        case '\u2029':
        case '\u205f':
        case '\u3000':
          return true;
        case '\u2007':
          return false;
        default:

    switch (presentBehavior) {
      case FIRST_PRESENT:
        if (list.contains(key)) {
          assertEquals(list.indexOf(key), answer);
          return;
        }
        break;
      case LAST_PRESENT:
        if (list.contains(key)) {
          assertEquals(list.lastIndexOf(key), answer);
          return;
        }
        break;
      case ANY_PRESENT:
        if (list.contains(key)) {