Hi,
I have a question about one-to-many association and serializable. In my project there is an Invoice and Item mapping. One invoice contain many items. In Invoice pojo I have getItems and setItems methods. In Invoice.hbm.xml I have



The problem is that I use applets on client side and when I try to send Invoice object which contain HashSet of Items (all loaded by hibernate from database) I get serializable exception. I found out that the problem was that hibernate doesen't create pure HashSet of Items. Instead it creates org.hibernate.collection.PersistentSet which couldn't be serialized because my applet doesen't contain this class. Is there a way to create items as HashSet and not as PersistentSet. I know that i can add hibernate.jar to my applet and that will work but this file is so huge that loading time will be much longer. If any of you know the answer please help.