return delegateList.internalArray();
  }

  @Override
  int internalArrayStart() {
    return delegateList.internalArrayStart();
  }

  @Override
  int internalArrayEnd() {
    return delegateList.internalArrayEnd();
  }

  @Override
  public E get(int index) {
    return delegateList.get(index);
  }

  // redeclare to help optimizers with b/310253115
  @SuppressWarnings("RedundantOverride")

    return delegateList.internalArray();
  }

  @Override
  int internalArrayStart() {
    return delegateList.internalArrayStart();
  }

  @Override
  int internalArrayEnd() {
    return delegateList.internalArrayEnd();
  }

  @Override
  public E get(int index) {
    return delegateList.get(index);
  }

  // redeclare to help optimizers with b/310253115
  @SuppressWarnings("RedundantOverride")

    return elements.internalArray();
  }

  @Override
  int internalArrayStart() {
    return elements.internalArrayStart();
  }

  @Override
  int internalArrayEnd() {
    return elements.internalArrayEnd();
  }

  @Override
  public UnmodifiableIterator<E> iterator() {
    return elements.iterator();
  }

  @GwtIncompatible // NavigableSet
  @Override

    return false;
  }

  @Override
  @Nullable Object[] internalArray() {
    return array;
  }

  @Override
  int internalArrayStart() {
    return 0;
  }

  @Override
  int internalArrayEnd() {
    return size;
  }

  @Override
  int copyIntoArray(@Nullable Object[] dst, int dstOff) {
    arraycopy(array, 0, dst, dstOff, size);
    return dstOff + size;
  }

  }

  @Override
  Object[] internalArray() {
    return elements;
  }

  @Override
  int internalArrayStart() {
    return 0;
  }

  @Override
  int internalArrayEnd() {
    return elements.length;
  }

  @Override
  int copyIntoArray(@Nullable Object[] dst, int offset) {
    arraycopy(elements, 0, dst, offset, elements.length);
    return offset + elements.length;