--- C:\Apps\groovy-1.0-jsr-01\src\main\groovy\ui\GroovyMain.java	2005-04-05 23:17:08.000000000 +0100
+++ C:\Apps\groovy-build\groovy-1.0-jsr-01\src\main\groovy\ui\GroovyMain.java	2005-04-17 20:32:11.579278400 +0100
@@ -348,8 +348,8 @@
                 backup.deleteOnExit();
             } else {
                 backup = new File(file.getPath() + backupExtension);
-                backup.delete();
             }
+            backup.delete();
             if (!file.renameTo(backup))
                 throw new IOException("unable to rename " + file + " to " + backup);