K0 extends @Nullable Object, V0 extends @Nullable Object>
      extends MultimapBuilder<K0, V0> {
    ListMultimapBuilder() {}

    @Override
    public abstract <K extends K0, V extends V0> ListMultimap<K, V> build();

    @Override
    public <K extends K0, V extends V0> ListMultimap<K, V> build(
        Multimap<? extends K, ? extends V> multimap) {

abstract class AbstractCatchingFuture<
        V extends @Nullable Object, X extends Throwable, F, T extends @Nullable Object>
    extends FluentFuture.TrustedFuture<V> implements Runnable {
  static <V extends @Nullable Object, X extends Throwable> ListenableFuture<V> create(
      ListenableFuture<? extends V> input,
      Class<X> exceptionType,
      Function<? super X, ? extends V> fallback,
      Executor executor) {

  public static <K, V> ImmutableSortedMap<K, V> copyOf(
      Iterable<? extends Entry<? extends K, ? extends V>> entries) {
    return new Builder<K, V>((Comparator<K>) NATURAL_ORDER).putAll(entries).build();
  }

  public static <K, V> ImmutableSortedMap<K, V> copyOf(
      Iterable<? extends Entry<? extends K, ? extends V>> entries,
      Comparator<? super K> comparator) {

    // ? extends Number
    assertAssignable(new TypeToken<List<N1>>() {}, new TypeToken<List<? extends Number>>() {});
    assertAssignable(new TypeToken<ArrayList<N1>>() {}, new TypeToken<List<? extends Number>>() {});
    assertAssignable(
        new TypeToken<List<? extends N11>>() {}, new TypeToken<List<? extends Number>>() {});
  }

  public <N1 extends Number, N2 extends Number, N11 extends N1>

     */
    @CanIgnoreReturnValue
    public <T extends B> Builder<B> putAll(Map<? extends Class<? extends T>, ? extends T> map) {
      for (Entry<? extends Class<? extends T>, ? extends T> entry : map.entrySet()) {
        Class<? extends T> type = entry.getKey();
        T value = entry.getValue();
        mapBuilder.put(type, cast(type, value));
      }

     * operation O(1).
     */

    @CheckForNull private Iterator<? extends Iterator<? extends T>> topMetaIterator;

    // Only becomes nonnull if we encounter nested concatenations.
    @CheckForNull private Deque<Iterator<? extends Iterator<? extends T>>> metaIterators;

    ConcatenatedIterator(Iterator<? extends Iterator<? extends T>> metaIterator) {
      iterator = emptyIterator();

  /** @since 11.0 */
  @Override
  public void put(K key, V value) {
    throw new UnsupportedOperationException();
  }

  /** @since 12.0 */
  @Override
  public void putAll(Map<? extends K, ? extends V> m) {
    for (Entry<? extends K, ? extends V> entry : m.entrySet()) {
      put(entry.getKey(), entry.getValue());
    }
  }

  @Override
  public void cleanUp() {}

  @Override
  public long size() {

      return copyOf(table.cellSet());
    }
  }

  static <R, C, V> ImmutableTable<R, C, V> copyOf(
      Iterable<? extends Cell<? extends R, ? extends C, ? extends V>> cells) {
    ImmutableTable.Builder<R, C, V> builder = ImmutableTable.builder();
    for (Cell<? extends R, ? extends C, ? extends V> cell : cells) {
      builder.put(cell);
    }
    return builder.build();
  }

  /**

public final class ListGenerators {

  private ListGenerators() {}

  public static class ImmutableListOfGenerator extends TestStringListGenerator {
    @Override
    protected List<String> create(String[] elements) {
      return ImmutableList.copyOf(elements);
    }
  }

  public static class BuilderAddListGenerator extends TestStringListGenerator {
    @Override
    protected List<String> create(String[] elements) {

  @ParametricNullness
  static <V extends @Nullable Object, X extends Exception> V getChecked(
      Future<V> future, Class<X> exceptionClass) throws X {
    return getChecked(bestGetCheckedTypeValidator(), future, exceptionClass);
  }

  /** Implementation of {@link Futures#getChecked(Future, Class)}. */
  @CanIgnoreReturnValue
  @VisibleForTesting
  @ParametricNullness