You are trying to send a collection of java.lang.Object which is not allowed by GWT-RPC.
See documentation http://www.gwtproject.org/doc/latest/DevGuideServerCommunication.html#DevGuideSerializableTypes As you are using JPA you should also read the section about serializing enhanced classes on the linked page. -- J. -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
