stream.defaultReadObject();
      setInverse((AbstractBiMap<V, K>) requireNonNull(stream.readObject()));
    }

    @GwtIncompatible // Not needed in the emulated source.
    @J2ktIncompatible
    Object readResolve() {
      return inverse().inverse();
    }

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

  private final transient GeneralRange<E> range;
  private final transient AvlNode<E> header;

  /**
   * An instance created in {@link #readObject} to be returned from {@link #readResolve}. This field
   * is used only by those methods, and it is never set in a "normal" instance.
   *
   * <p>For more background, see {@code ConcurrentHashMultiset.deserializationReplacement}.
   */

  Cut<C> lowerBound() {
    return lowerBound;
  }

  Cut<C> upperBound() {
    return upperBound;
  }

  Object readResolve() {
    if (this.equals(ALL)) {
      return all();
    } else {
      return this;
    }
  }

  @SuppressWarnings("unchecked") // this method may throw CCE

    protected String doBackward(Integer value) {
      return value.toString();
    }

    @Override
    public String toString() {
      return "Ints.stringConverter()";
    }

    private Object readResolve() {
      return INSTANCE;
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 1;
  }

  /**

     * optimization and opened up a weird type-safety problem.
     */

    @Override
    public String toString() {
      return "Converter.identity()";
    }

    private Object readResolve() {
      return INSTANCE;
    }

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

    final ImmutableMultimap<?, ?> multimap;

    KeysSerializedForm(ImmutableMultimap<?, ?> multimap) {
      this.multimap = multimap;
    }

    Object readResolve() {
      return multimap.keys();
    }
  }

  /**
   * Returns an immutable collection of the values in this multimap. Its iterator traverses the

   * upon deserialization. An instance of this class is fit for use by the writeReplace of
   * LocalManualCache.
   *
   * <p>Unfortunately, readResolve() doesn't get called when a circular dependency is present, so
   * the proxy must be able to behave as the cache itself.
   */
  private static class ManualSerializationProxy<K, V> extends ForwardingCache<K, V>

      int i = 0;
      for (Entry<E> entry : multiset.entrySet()) {
        elements[i] = entry.getElement();
        counts[i] = entry.getCount();
        i++;
      }
    }

    Object readResolve() {
      int n = elements.length;
      Builder<E> builder = new Builder<>(comparator);
      for (int i = 0; i < n; i++) {
        builder.addCopies(elements[i], counts[i]);
      }
      return builder.build();

    throw new InvalidObjectException("Use SerializationProxy");
  }

  /**
   * The actual object that gets serialized. Unfortunately, readResolve() doesn't get called when a
   * circular dependency is present, so the proxy must be able to behave as the map itself.
   */
  abstract static class AbstractSerializationProxy<K, V> extends ForwardingConcurrentMap<K, V>

    final ImmutableMultimap<?, ?> multimap;

    KeysSerializedForm(ImmutableMultimap<?, ?> multimap) {
      this.multimap = multimap;
    }

    Object readResolve() {
      return multimap.keys();
    }
  }

  /**
   * Returns an immutable collection of the values in this multimap. Its iterator traverses the