*
     * @throws IllegalArgumentException if {@code expectedValuesPerKey < 0}
     */
    public ListMultimapBuilder<K0, @Nullable Object> arrayListValues(int expectedValuesPerKey) {
      checkNonnegative(expectedValuesPerKey, "expectedValuesPerKey");
      return new ListMultimapBuilder<K0, @Nullable Object>() {
        @Override
        public <K extends K0, V extends @Nullable Object> ListMultimap<K, V> build() {