--- old/src/share/tools/ProjectCreator/DirectoryTree.java	2011-02-10 13:17:18.444566000 +0100
+++ new/src/share/tools/ProjectCreator/DirectoryTree.java	2011-02-10 13:17:18.110546900 +0100
@@ -55,6 +55,9 @@
         private Vector nodes = new Vector();
 
         public FileIterator(Node rootNode) {
+            if(rootNode == null) {
+                return;
+            }
             nodes.add(rootNode);
             prune();
         }
@@ -112,10 +115,7 @@
         throws IllegalArgumentException {
         File root = new File(Util.normalize(baseDirectory));
         if (!root.isDirectory()) {
-            throw new IllegalArgumentException("baseDirectory \"" +
-                                               baseDirectory +
-                                               "\" does not exist or " +
-                                               "is not a directory");
+            return;
         }
         try {
             root = root.getCanonicalFile();