Index: java/org/apache/catalina/manager/util/ReverseComparator.java
===================================================================
--- java/org/apache/catalina/manager/util/ReverseComparator.java	(revision 1710467)
+++ java/org/apache/catalina/manager/util/ReverseComparator.java	(working copy)
@@ -41,7 +41,7 @@
      */
     @Override
     public int compare(Session o1, Session o2) {
-        int returnValue = comparator.compare(o1, o2);
-        return (- returnValue);
+        // Note that comparing o2 with o1 to get reverse result...
+        return comparator.compare(o2, o1);
     }
 }