@@ -0,0 +1,211 @@
+package net.sf.kerner.utils;%0A%0Aimport java.util.Comparator;%0A%0Apublic class ComparatorIntegerDefault implements Comparator%3CInteger%3E %7B%0A%0A%09public int compare(Integer o1, Integer o2) %7B%0A%09%09return o1.compareTo(o2);%0A%09%7D%0A%0A%7D%0A

Introduce ComparatorIntegerDefault.