I've taken a look at that code. I can't see any differences between what i'm doing and what is in that other post. Its driving me nuts lol.
So i've got two serializable classes and one contains a list to the other and it just does not want to pass this to my service without throwing this error message. I may start a new project from scratch and see if I can get something to work from there. Thanks for the quick replies much appreciated. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.