@J2ktIncompatible
  @GwtIncompatible
    abstract Object writeReplace();

  @GwtIncompatible
  @J2ktIncompatible
    private void readObject(ObjectInputStream stream) throws InvalidObjectException {
    throw new InvalidObjectException("Use SerializedForm");
  }

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

    }

    ImmutableMap<Object, ImmutableList<Object>> tmpMap;
    try {
      tmpMap = builder.buildOrThrow();
    } catch (IllegalArgumentException e) {
      throw (InvalidObjectException) new InvalidObjectException(e.getMessage()).initCause(e);
    }

    FieldSettersHolder.MAP_FIELD_SETTER.set(this, tmpMap);
    FieldSettersHolder.SIZE_FIELD_SETTER.set(this, tmpSize);
  }

        throw new InvalidObjectException("Duplicate key-value pairs exist for key " + key);
      }
      builder.put(key, valueSet);
      tmpSize += valueCount;
    }

    ImmutableMap<Object, ImmutableSet<Object>> tmpMap;
    try {
      tmpMap = builder.buildOrThrow();
    } catch (IllegalArgumentException e) {
      throw (InvalidObjectException) new InvalidObjectException(e.getMessage()).initCause(e);
    }

  Object writeReplace() {
    return new SerializedForm<>(this);
  }

  @J2ktIncompatible // serialization
  private void readObject(ObjectInputStream stream) throws InvalidObjectException {
    throw new InvalidObjectException("Use SerializedForm");
  }

  /**
   * Not supported. Use {@link #toImmutableBiMap} instead. This method exists only to hide {@link

  Object writeReplace() {
    return new SerializedForm<>(asMapOfRanges());
  }

  @J2ktIncompatible // java.io.ObjectInputStream
  private void readObject(ObjectInputStream stream) throws InvalidObjectException {
    throw new InvalidObjectException("Use SerializedForm");
  }

  @J2ktIncompatible private static final long serialVersionUID = 0;

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

  @J2ktIncompatible // serialization
  private void readObject(ObjectInputStream stream) throws InvalidObjectException {
    throw new InvalidObjectException("Use SerializedForm");
  }

  @Override
  @J2ktIncompatible
  @GwtIncompatible
    Object writeReplace() {
    return new SerializedForm(toArray());
  }

  /**

      return new EntrySetSerializedForm<E>(ImmutableMultiset.this);
    }

    @GwtIncompatible
    @J2ktIncompatible
        private void readObject(ObjectInputStream stream) throws InvalidObjectException {
      throw new InvalidObjectException("Use EntrySetSerializedForm");
    }

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

  @GwtIncompatible
  @J2ktIncompatible

      return new AsSetSerializedForm<C>(ranges, domain);
    }

    @J2ktIncompatible // java.io.ObjectInputStream
    private void readObject(ObjectInputStream stream) throws InvalidObjectException {
      throw new InvalidObjectException("Use SerializedForm");
    }
  }

  private static final class AsSetSerializedForm<C extends Comparable> implements Serializable {
    private final ImmutableList<Range<C>> ranges;

      return new InverseSerializedForm<>(RegularImmutableBiMap.this);
    }

    @J2ktIncompatible // java.io.ObjectInputStream
    private void readObject(ObjectInputStream stream) throws InvalidObjectException {
      throw new InvalidObjectException("Use InverseSerializedForm");
    }
  }

  @J2ktIncompatible // serialization
  private static final class InverseSerializedForm<K, V> implements Serializable {

    }

    ImmutableMap<Object, ImmutableList<Object>> tmpMap;
    try {
      tmpMap = builder.buildOrThrow();
    } catch (IllegalArgumentException e) {
      throw (InvalidObjectException) new InvalidObjectException(e.getMessage()).initCause(e);
    }

    FieldSettersHolder.MAP_FIELD_SETTER.set(this, tmpMap);
    FieldSettersHolder.SIZE_FIELD_SETTER.set(this, tmpSize);
  }