Expose Iterator publicly as a helper to other ResourceCollections

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@477967 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/types/resources/Resources.java

@@ -52,7 +52,8 @@ public class Resources extends DataType implements ResourceCollection {
         }
     };
 
-    private static final Iterator EMPTY_ITERATOR = new Iterator() {
+    /** static empty Iterator */
+    public static final Iterator EMPTY_ITERATOR = new Iterator() {
         public Object next() {
             throw new NoSuchElementException();
         }