Index: AbstractFileObject.java
===================================================================
RCS file: /cvs/openide/src/org/openide/filesystems/AbstractFileObject.java,v
retrieving revision 1.73
diff -u -r1.73 AbstractFileObject.java
--- AbstractFileObject.java	3 Jul 2002 15:43:12 -0000	1.73
+++ AbstractFileObject.java	9 Jul 2002 10:35:15 -0000
@@ -417,6 +417,9 @@
         if (parent == null) {
             FSException.io ("EXC_CannotRenameRoot", getAbstractFileSystem ().getDisplayName ()); // NOI18N
         }
+        if (name.indexOf ('/') != -1 || ext.indexOf ('/') != -1) {
+            FSException.io ("EXC_CannotRename", toString (), getAbstractFileSystem ().getDisplayName (), name + "." + ext); // NOI18N
+        }
         try {
             getFileSystem ().beginAtomicAction ();
             synchronized (parent) {