Index: lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/dao/hibernate/AssessmentResultDAOHibernate.java
===================================================================
diff -u -r53be6f88884b380ccb963eb05c985a57f580b5d4 -r71e3902de830dd468ba4cca9231b16c8253e51b2
--- lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/dao/hibernate/AssessmentResultDAOHibernate.java	(.../AssessmentResultDAOHibernate.java)	(revision 53be6f88884b380ccb963eb05c985a57f580b5d4)
+++ lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/dao/hibernate/AssessmentResultDAOHibernate.java	(.../AssessmentResultDAOHibernate.java)	(revision 71e3902de830dd468ba4cca9231b16c8253e51b2)
@@ -158,7 +158,8 @@
 	if ((list == null) || (list.size() == 0)) {
 	    return null;
 	} else {
-	    return ((Float) list.get(0));
+	    Object result = list.get(0);
+	    return result == null ? null : ((Double) result).floatValue();
 	}
     }