Fix JDK 1.1 incompatibility

Reported by:	Les Hughes <leslie.hughes@rubus.com>


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269214 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java

@@ -112,7 +112,7 @@ public class XMLResultAggregator extends Task implements XMLConstants {
     
     public AggregateTransformer createReport(){
         AggregateTransformer transformer = new AggregateTransformer(this);
-        transformers.add(transformer);
+        transformers.addElement(transformer);
         return transformer;
     }