@@ -0,0 +1,207 @@
+package net.sf.kerner.utils;%0A%0Aimport java.util.Comparator;%0A%0Apublic class ComparatorDoubleDefault implements Comparator%3CDouble%3E %7B%0A%0A%09public int compare(Double o1, Double o2) %7B%0A%09%09return o1.compareTo(o2);%0A%09%7D%0A%0A%7D%0A

Introduce ComparatorDoubleDefault.