--- a/xml.wsdl.refactoring/src/org/netbeans/modules/xml/wsdl/refactoring/WSDLRefactoringPlugin.java	Wed Oct 14 14:26:41 2009 +0400
+++ a/xml.wsdl.refactoring/src/org/netbeans/modules/xml/wsdl/refactoring/WSDLRefactoringPlugin.java	Wed Oct 14 11:46:50 2009 -0700
@@ -168,7 +168,9 @@ 
             try {
                 Component root = engine.getSearchRoot(file);
 //System.out.println("       : " + root);
-                searchRoots.add(root);
+                if (root != null) {
+                    searchRoots.add(root);
+                }
             }
             catch (IOException ex) {
                 ErrorManager.getDefault().log(ErrorManager.INFORMATIONAL, ex.getMessage());