final Object one = new Object();
    final Object two = new Object();
    CacheLoader<Object, Object> loader =
        new CacheLoader<Object, Object>() {
          @Override
          public Object load(Object key) {
            return one;
          }

          @Override
          public ListenableFuture<Object> reload(Object key, Object oldValue) {

    // Three catchers for related types String, Object, and Comparable<?>.
    // String isa Object
    // String isa Comparable<?>
    // Comparable<?> isa Object
    StringCatcher stringCatcher = new StringCatcher();

    final List<Object> objectEvents = Lists.newArrayList();
    Object objCatcher =
        new Object() {
          @SuppressWarnings("unused")
          @Subscribe

    // Three catchers for related types String, Object, and Comparable<?>.
    // String isa Object
    // String isa Comparable<?>
    // Comparable<?> isa Object
    StringCatcher stringCatcher = new StringCatcher();

    final List<Object> objectEvents = Lists.newArrayList();
    Object objCatcher =
        new Object() {
          @SuppressWarnings("unused")
          @Subscribe

      @Override
      public Map<Object, Object> create(List<?> keys) {
        ImmutableMap.Builder<Object, Object> builder = ImmutableMap.builder();
        for (Object k : keys) {
          builder.put(k, "dummy value");
        }
        return builder.buildOrThrow();
      }
    },
    BUILDER_PUT_ENTRIES_ONE_BY_ONE {
      @Override
      public Map<Object, Object> create(List<?> keys) {

   * Identical to {@link #appendTo(Appendable, Object, Object, Object...)}, except that it does not
   * throw {@link IOException}.
   */
  @CanIgnoreReturnValue
  public final StringBuilder appendTo(
      StringBuilder builder,
      @CheckForNull Object first,
      @CheckForNull Object second,
      @Nullable Object... rest) {
    return appendTo(builder, iterable(first, second, rest));
  }

  /**

    Object computed = new Object();
    LoadingCache<Object, Object> cache =
        CacheBuilder.newBuilder()
            .expireAfterWrite(0, SECONDS)
            .removalListener(listener)
            .build(constantLoader(computed));

    Object key = new Object();
    assertSame(computed, cache.getUnchecked(key));
    RemovalNotification<Object, Object> notification = listener.remove();
    assertSame(key, notification.getKey());

@ElementTypesAreNonnullByDefault
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);
  }

  /**

    throw new UnsupportedOperationException();
  }

  @Override
  public boolean equals(@CheckForNull Object object) {
    if (object instanceof Entry) {
      Entry<?, ?> that = (Entry<?, ?>) object;
      return Objects.equal(this.getKey(), that.getKey())
          && Objects.equal(this.getValue(), that.getValue());
    }
    return false;
  }

  @Override
  public int hashCode() {
    K k = getKey();

    final List<Object> annotatedIn1And2AndClassEvents = Lists.newArrayList();
    final List<Object> declaredIn1AnnotatedIn2Events = Lists.newArrayList();
    final List<Object> declaredIn1AnnotatedInClassEvents = Lists.newArrayList();
    final List<Object> declaredIn2AnnotatedInClassEvents = Lists.newArrayList();
    final List<Object> annotatedIn2Events = Lists.newArrayList();

    }
  }

  private ListenerCallQueue.Event<Object> incrementingEvent(
      Multiset<Object> counters, Object expectedListener, int expectedCount) {
    return incrementingEvent(counters, multiset(expectedListener, expectedCount));
  }

  private ListenerCallQueue.Event<Object> incrementingEvent(
      final Multiset<Object> counters, final Multiset<Object> expected) {
    return new ListenerCallQueue.Event<Object>() {