builder.add(resolvedInterface);
    }
    return builder.build();
  }

  private ImmutableList<TypeToken<? super T>> boundsAsInterfaces(Type[] bounds) {
    ImmutableList.Builder<TypeToken<? super T>> builder = ImmutableList.builder();
    for (Type bound : bounds) {
      @SuppressWarnings("unchecked") // upper bound of T

    ImmutableList<TestDatum> first = ImmutableList.of(new TestDatum("A", 1), new TestDatum("A", 2));
    ImmutableList<TestDatum> second =
        ImmutableList.of(new TestDatum("A", 3), new TestDatum("A", 4));

    Comparator<TestDatum> comparator = Comparator.comparing(d -> d.letter);
    Iterator<TestDatum> merged =

    ImmutableList<TestDatum> first = ImmutableList.of(new TestDatum("A", 1), new TestDatum("A", 2));
    ImmutableList<TestDatum> second =
        ImmutableList.of(new TestDatum("A", 3), new TestDatum("A", 4));

    Comparator<TestDatum> comparator = Comparator.comparing(d -> d.letter);
    Iterator<TestDatum> merged =

    assertSubtypeTokenBeforeSupertypeToken(ImmutableList.<TypeToken<?>>of());
  }

  public void testAssertSubtypeTokenBeforeSupertypeToken_oneType() {
    assertSubtypeTokenBeforeSupertypeToken(ImmutableList.of(TypeToken.of(String.class)));
  }

  public void testAssertSubtypeTokenBeforeSupertypeToken_subtypeFirst() {
    assertSubtypeTokenBeforeSupertypeToken(

  private final transient ImmutableList<V> valueList;
  private final transient @Nullable ImmutableSortedMap<K, V> descendingMap;

  ImmutableSortedMap(RegularImmutableSortedSet<K> keySet, ImmutableList<V> valueList) {
    this(keySet, valueList, null);
  }

  ImmutableSortedMap(
      RegularImmutableSortedSet<K> keySet,
      ImmutableList<V> valueList,

    assertSubtypeTokenBeforeSupertypeToken(ImmutableList.<TypeToken<?>>of());
  }

  public void testAssertSubtypeTokenBeforeSupertypeToken_oneType() {
    assertSubtypeTokenBeforeSupertypeToken(ImmutableList.of(TypeToken.of(String.class)));
  }

  public void testAssertSubtypeTokenBeforeSupertypeToken_subtypeFirst() {
    assertSubtypeTokenBeforeSupertypeToken(

   */
  public static <T extends @Nullable Object> ImmutableList<ListenableFuture<T>> inCompletionOrder(
      Iterable<? extends ListenableFuture<? extends T>> futures) {
    ListenableFuture<? extends T>[] copy = gwtCompatibleToArray(futures);
    InCompletionOrderState<T> state = new InCompletionOrderState<>(copy);
    ImmutableList.Builder<AbstractFuture<T>> delegatesBuilder =
        ImmutableList.builderWithExpectedSize(copy.length);

   *
   * <p>returns a set containing six lists:
   *
   * <ul>
   *   <li>{@code ImmutableList.of(1, "A")}
   *   <li>{@code ImmutableList.of(1, "B")}
   *   <li>{@code ImmutableList.of(1, "C")}
   *   <li>{@code ImmutableList.of(2, "A")}
   *   <li>{@code ImmutableList.of(2, "B")}
   *   <li>{@code ImmutableList.of(2, "C")}
   * </ul>
   *

   *
   * <p>returns a set containing six lists:
   *
   * <ul>
   *   <li>{@code ImmutableList.of(1, "A")}
   *   <li>{@code ImmutableList.of(1, "B")}
   *   <li>{@code ImmutableList.of(1, "C")}
   *   <li>{@code ImmutableList.of(2, "A")}
   *   <li>{@code ImmutableList.of(2, "B")}
   *   <li>{@code ImmutableList.of(2, "C")}
   * </ul>
   *

  private final transient ImmutableList<V> valueList;
  private final transient @Nullable ImmutableSortedMap<K, V> descendingMap;

  ImmutableSortedMap(RegularImmutableSortedSet<K> keySet, ImmutableList<V> valueList) {
    this(keySet, valueList, null);
  }

  ImmutableSortedMap(
      RegularImmutableSortedSet<K> keySet,
      ImmutableList<V> valueList,