*
   * <p>The array must be internally created.
   */
  static <E> ImmutableList<E> asImmutableList(Object[] elements) {
    return asImmutableList(elements, elements.length);
  }

  /** Views the array as an immutable list. Does not check for nulls. */
  static <E> ImmutableList<E> asImmutableList(@Nullable Object[] elements, int length) {
    if (length == 0) {
      return of();
    }

  }

  RegularImmutableAsList(ImmutableCollection<E> delegate, Object[] array) {
    this(delegate, ImmutableList.<E>asImmutableList(array));
  }

  RegularImmutableAsList(ImmutableCollection<E> delegate, Object[] array, int size) {
    this(delegate, ImmutableList.<E>asImmutableList(array, size));
  }

  @Override
  ImmutableCollection<E> delegateCollection() {
    return delegate;
  }

   *
   * <p>The array must be internally created.
   */
  @SuppressWarnings("unchecked") // caller is reponsible for getting this right
  static <E> ImmutableList<E> asImmutableList(Object[] elements) {
    return unsafeDelegateList((List) Arrays.asList(elements));
  }

  public static <E extends Comparable<? super E>> ImmutableList<E> sortedCopyOf(
      Iterable<? extends E> elements) {

   * subject to change.
   *
   * @since 2.0
   */
  public ImmutableList<E> asList() {
    return isEmpty() ? ImmutableList.of() : ImmutableList.asImmutableList(toArray());
  }

  /**
   * Returns {@code true} if this immutable collection's implementation contains references to
   * user-created objects that aren't accessible via this collection's methods. This is generally

           * populated.
           */
          return of(requireNonNull(dedupedElements[0]));
        default:
          return new JdkBackedImmutableSet<>(
              delegate, ImmutableList.asImmutableList(dedupedElements, distinct));
      }
    }
  }

  private static int estimatedSizeForUnknownDuplication(int inputElementsIncludingAnyDuplicates) {
    if (inputElementsIncludingAnyDuplicates

      // large array relative to the number of elements, so we cap the ratio.
      contents = Arrays.copyOf(contents, uniques);
    }
    return new RegularImmutableSortedSet<E>(
        ImmutableList.<E>asImmutableList(contents, uniques), comparator);
  }

  /**
   * Returns a builder that creates immutable sorted sets with an explicit comparator. If the