Method reverse

output/java_guava/1.4.18/Maps.java:4032–4034

(Comparator<T> forward)

    // If we inline this, we get a javac error.

    private static <T> Ordering<T> reverse(Comparator<T> forward) {
      return Ordering.from(forward).reverse();
    }

    @Override
    public K firstKey() {