From: <###@###.###>
Subject: Collections and reverse order comparator

In version version 1.77, 11/17/03 of the classe
java.util.Collections, the class ReverseComparator
is definied with a formal parameter T that is unused.

moreover method reverseOrder() when cmp is null
doesn't use the static field REVERSE_ORDER.

public static <T> Comparator<T> reverseOrder(Comparator<T> cmp) {
   if (cmp == null)
     return REVERSE_ORDER;
     //return new ReverseComparator();

   return new ReverseComparator2<T>(cmp);
}