case 1:
        Entry<? extends K, ? extends V> entry = getOnlyElement(entries);
        return of((K) entry.getKey(), (V) entry.getValue());
      default:
        @SuppressWarnings("unchecked") // TODO(cpovirk): Consider storing an Entry<?, ?>[].
        Entry<K, V>[] entryArray = entries.toArray((Entry<K, V>[]) new Entry<?, ?>[entries.size()]);
        return new RegularImmutableMap<K, V>(throwIfDuplicateKeys, entryArray);
    }
  }

   * order {@code "one"=1, "two"=2, "three"=3}, and {@code keySet()} and {@code values()} respect
   * the same order. If you want a different order, consider using {@link ImmutableSortedMap} to
   * sort by keys, or call {@link #orderEntriesByValue(Comparator)}, which changes this builder to
   * sort entries by value.
   *

   * order {@code "one"=1, "two"=2, "three"=3}, and {@code keySet()} and {@code values()} respect
   * the same order. If you want a different order, consider using {@link ImmutableSortedMap} to
   * sort by keys, or call {@link #orderEntriesByValue(Comparator)}, which changes this builder to
   * sort entries by value.
   *