assertEquals(list, newArrayList(Iterators.limit(list.iterator(), 1)));
    assertEquals(list, newArrayList(Iterators.limit(list.iterator(), 2)));

    list.add("pants");
    assertFalse(Iterators.limit(list.iterator(), 0).hasNext());
    assertEquals(ImmutableList.of("cool"), newArrayList(Iterators.limit(list.iterator(), 1)));
    assertEquals(list, newArrayList(Iterators.limit(list.iterator(), 2)));

            list(0, 0, 0),
            list(0, 0, 1),
            list(0, 1, 0),
            list(0, 1, 1),
            list(1, 0, 0),
            list(1, 0, 1),
            list(1, 1, 0),
            list(1, 1, 1))
        .inOrder();
  }

  public void testCartesianProduct_contains() {
    Set<List<Integer>> actual = Sets.cartesianProduct(set(1, 2), set(3, 4));
    assertTrue(actual.contains(list(1, 3)));

  /**
   * Ensures that {@code index} specifies a valid <i>element</i> in an array, list or string of size
   * {@code size}. An element index may range from zero, inclusive, to {@code size}, exclusive.
   *
   * @param index a user-supplied index identifying an element of an array, list or string
   * @param size the size of that array, list or string
   * @return the value of {@code index}

   * {@code getUnchecked}, and threads with an odd index will call {@code get}. If the cache throws
   * exceptions, this difference may be visible in the returned List.
   */
  private static <K> List<Object> doConcurrentGet(
      final LoadingCache<K, ?> cache,
      final K key,
      int nThreads,
      final CountDownLatch gettersStartedSignal)
      throws InterruptedException {

      }
    }

    @Override
    public E last() {
      synchronized (mutex) {
        return delegate().last();
      }
    }

    private static final long serialVersionUID = 0;
  }

  private static <E extends @Nullable Object> List<E> list(
      List<E> list, @CheckForNull Object mutex) {
    return (list instanceof RandomAccess)

    assertAssignable(
        new TypeToken<List<? extends N1>>() {}, new TypeToken<List<? extends N1>>() {});
    assertAssignable(new TypeToken<List<? super N1>>() {}, new TypeToken<List<? super N1>>() {});
    assertAssignable(
        new TypeToken<List<? extends Number>>() {}, new TypeToken<List<? extends Number>>() {});
    assertAssignable(
        new TypeToken<List<? super Number>>() {}, new TypeToken<List<? super Number>>() {});
  }

    assertEquals(list, newArrayList(Iterators.limit(list.iterator(), 1)));
    assertEquals(list, newArrayList(Iterators.limit(list.iterator(), 2)));

    list.add("pants");
    assertFalse(Iterators.limit(list.iterator(), 0).hasNext());
    assertEquals(ImmutableList.of("cool"), newArrayList(Iterators.limit(list.iterator(), 1)));
    assertEquals(list, newArrayList(Iterators.limit(list.iterator(), 2)));

    }

    @Override
    protected Collection<List<E>> delegate() {
      return delegate;
    }

    @Override
    public boolean contains(@CheckForNull Object object) {
      if (!(object instanceof List)) {
        return false;
      }
      List<?> list = (List<?>) object;
      if (list.size() != axes.size()) {
        return false;
      }
      int i = 0;

   * {@code getUnchecked}, and threads with an odd index will call {@code get}. If the cache throws
   * exceptions, this difference may be visible in the returned List.
   */
  private static <K> List<Object> doConcurrentGet(
      final LoadingCache<K, ?> cache,
      final K key,
      int nThreads,
      final CountDownLatch gettersStartedSignal)
      throws InterruptedException {

  /** Releases all threads in the {@link #waiters} list, and clears the list. */
  private void releaseWaiters() {
    Waiter head = ATOMIC_HELPER.gasWaiters(this, Waiter.TOMBSTONE);
    for (Waiter currentWaiter = head; currentWaiter != null; currentWaiter = currentWaiter.next) {
      currentWaiter.unpark();
    }
  }

  /**
   * Clears the {@link #listeners} list and prepends its contents to {@code onto}, least recently