assertFalse(head.contains(list.get(size - 1)));
    assertFalse(tail.contains(list.get(0)));
  }

  @CollectionSize.Require(absent = {ZERO, ONE})
  public void testSubList_indexOf() {
    List<E> list = getList();
    int size = getNumElements();
    List<E> copy = list.subList(0, size);
    List<E> head = list.subList(0, size - 1);
    List<E> tail = list.subList(1, size);