diff --git a/ruby.project/src/org/netbeans/modules/ruby/rubyproject/UpdateHelper.java b/ruby.project/src/org/netbeans/modules/ruby/rubyproject/UpdateHelper.java
--- a/ruby.project/src/org/netbeans/modules/ruby/rubyproject/UpdateHelper.java
+++ b/ruby.project/src/org/netbeans/modules/ruby/rubyproject/UpdateHelper.java
@@ -278,7 +278,7 @@
 //            if (oldRoot != null) {
 //                Document doc = oldRoot.getOwnerDocument();
 //                Element newRoot = doc.createElementNS (RubyProjectType.PROJECT_CONFIGURATION_NAMESPACE,"data"); //NOI18N
-//                copyDocument (doc, oldRoot, newRoot);
+//                XMLUtil.copyDocument (doc, oldRoot, newRoot);
 //                Element sourceRoots = doc.createElementNS(RubyProjectType.PROJECT_CONFIGURATION_NAMESPACE,"source-roots");  //NOI18N
 //                Element root = doc.createElementNS (RubyProjectType.PROJECT_CONFIGURATION_NAMESPACE,"root");   //NOI18N
 //                root.setAttribute ("id","src.dir");   //NOI18N
@@ -295,7 +295,7 @@
 //                if (oldRoot != null) {
 //                    Document doc = oldRoot.getOwnerDocument();
 //                    Element newRoot = doc.createElementNS (RubyProjectType.PROJECT_CONFIGURATION_NAMESPACE,"data"); //NOI18N
-//                    copyDocument (doc, oldRoot, newRoot);
+//                    XMLUtil.copyDocument (doc, oldRoot, newRoot);
 //                    cachedElement = updateMinAntVersion (newRoot, doc);
 //                }
 //            }
@@ -308,39 +308,6 @@
         return cachedProperties;
     }
 
-    private static void copyDocument(Document doc, Element from, Element to, String projectConfigurationNamespace) {
-        NodeList nl = from.getChildNodes();
-        int length = nl.getLength();
-        for (int i=0; i< length; i++) {
-            Node node = nl.item (i);
-            Node newNode = null;
-            switch (node.getNodeType()) {
-                case Node.ELEMENT_NODE:
-                    Element oldElement = (Element) node;
-                    newNode = doc.createElementNS(projectConfigurationNamespace, oldElement.getTagName());
-                    NamedNodeMap m = oldElement.getAttributes();
-                    Element newElement = (Element) newNode;
-                    for (int index = 0; index < m.getLength(); index++) {
-                        Node attr = m.item(index);
-                          newElement.setAttribute(attr.getNodeName(), attr.getNodeValue());
-                    }
-                    copyDocument(doc, oldElement, newElement, projectConfigurationNamespace);
-                    break;
-                case Node.TEXT_NODE:
-                    Text oldText = (Text) node;
-                    newNode = doc.createTextNode(oldText.getData());
-                    break;
-                case Node.COMMENT_NODE:
-                    Comment oldComment = (Comment) node;
-                    newNode = doc.createComment(oldComment.getData());
-                    break;
-            }
-            if (newNode != null) {
-                to.appendChild (newNode);
-            }
-        }
-    }
-    
 //    private static Element updateMinAntVersion (final Element root, final Document doc) {
 //        NodeList list = root.getElementsByTagNameNS (RubyProjectType.PROJECT_CONFIGURATION_NAMESPACE,MINIMUM_ANT_VERSION_ELEMENT);
 //        if (list.getLength() == 1) {