Index: TECH/ListUtils.cls.xml
===================================================================
diff -u -r9 -r12
--- TECH/ListUtils.cls.xml	(.../ListUtils.cls.xml)	(revision 9)
+++ TECH/ListUtils.cls.xml	(.../ListUtils.cls.xml)	(revision 12)
@@ -283,16 +283,16 @@
 <Method name="GeefMaximum">
 <ClassMethod>1</ClassMethod>
 <FormalSpec>Lijst:%ListOfObjects,Comparator:TECH.Comparator.IComparator</FormalSpec>
-<ReturnType>%CacheStream</ReturnType>
+<ReturnType>%CacheString</ReturnType>
 <Implementation><![CDATA[
-	#dim Maximum As %CacheStream;
+	#dim Maximum As %CacheString = ""
 	If Lijst.Count() > 0 
 	{
 		Set Maximum = Lijst.GetAt(1)
 		
 		For i = 2:1:Lijst.Count()
 		{
-			#dim HulpWaarde As %CacheStream = Lijst.GetAt(i)
+			#dim HulpWaarde As %CacheString = Lijst.GetAt(i)
 			If ('Comparator.IsKleinerDan(HulpWaarde,Maximum))
 			{
 				Set Maximum = HulpWaarde