backwardDelegate,
                forwardDelegate,
                /* inverse= */ this)
        : result;
  }

  private static final class InverseEntries<K extends @Nullable Object, V extends @Nullable Object>
      extends ImmutableList<Entry<V, K>> {
    private final ImmutableList<Entry<K, V>> entries;

    InverseEntries(ImmutableList<Entry<K, V>> entries) {
      this.entries = entries;
    }

    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  static <C extends Comparable> Cut<C> belowValue(C endpoint) {
    return new BelowValue<>(endpoint);
  }

  private static final class BelowValue<C extends Comparable> extends Cut<C> {
    BelowValue(C endpoint) {
      super(checkNotNull(endpoint));
    }

    @Override

      super(AnEnum.B, AnEnum.A, AnEnum.C, AnEnum.D, AnEnum.E);
    }
  }

  public static class Ints extends SampleElements<Integer> {
    public Ints() {
      // elements aren't sorted, to better test SortedSet iteration ordering
      super(1, 0, 2, 3, 4);
    }
  }

  public static <K extends @Nullable Object, V extends @Nullable Object>
      SampleElements<Entry<K, V>> mapEntries(SampleElements<K> keys, SampleElements<V> values) {

 * @since 2.0
 */
@GwtCompatible
public final class HashBiMap<K extends @Nullable Object, V extends @Nullable Object>
    extends IteratorBasedAbstractMap<K, V> implements BiMap<K, V>, Serializable {

  /** Returns a new, empty {@code HashBiMap} with the default initial capacity (16). */
  public static <K extends @Nullable Object, V extends @Nullable Object> HashBiMap<K, V> create() {
    return create(16);
  }

  /**

       */
      @RetainedLocalRef
      ImmutableCollection<? extends ListenableFuture<? extends InputT>> localFutures = futures;
      ImmutableCollection<? extends Future<? extends InputT>> localFuturesOrNull =
          collectsValues ? localFutures : null;
      Runnable listener = () -> decrementCountAndMaybeComplete(localFuturesOrNull);
      for (ListenableFuture<? extends InputT> future : localFutures) {
        if (future.isDone()) {

 * @since 4.0
 */
@GwtCompatible
public abstract class ForwardingListenableFuture<V extends @Nullable Object>
    extends ForwardingFuture<V> implements ListenableFuture<V> {

  /** Constructor for use by subclasses. */
  protected ForwardingListenableFuture() {}

  @Override
  protected abstract ListenableFuture<? extends V> delegate();

  @Override
  public void addListener(Runnable listener, Executor exec) {

   */
  @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() {

 *
 * @author Kevin Bourrillion
 * @author Jared Levy
 * @author Louis Wasserman
 * @since 2.0
 */
@GwtCompatible
public abstract class ForwardingMap<K extends @Nullable Object, V extends @Nullable Object>
    extends ForwardingObject implements Map<K, V> {
  // TODO(lowasser): identify places where thread safety is actually lost

  /** Constructor for use by subclasses. */
  protected ForwardingMap() {}

   *
   * @since 22.0
   */
  public static <T extends @Nullable Object, E>
      Collector<T, ?, ImmutableSortedMultiset<E>> toImmutableSortedMultiset(
          Comparator<? super E> comparator,
          Function<? super T, ? extends E> elementFunction,
          ToIntFunction<? super T> countFunction) {
    checkNotNull(comparator);
    checkNotNull(elementFunction);

    }
  }

  public static class ImmutableMapCopyOfEntriesGenerator extends TestStringMapGenerator {
    @Override
    protected Map<String, String> create(Entry<String, String>[] entries) {
      return ImmutableMap.copyOf(asList(entries));
    }
  }

  public static class ImmutableMapUnhashableValuesGenerator
      extends TestUnhashableCollectionGenerator<Collection<UnhashableObject>> {

    @Override