How to populate GWT ListBox in TouchKit offline mode

I’m building a pilot application with TouchKit. There is a offline (OfflineModeConnector) view that contains a ListBox dynamically populated.

  • How do I get a dynamic list of String/Object from the server? - There is that possibility (eg: RpcProxy)? - How?

ps: I try to implement GWT-RPC, but it occurs connection error: 404, beside being a bad practice (need XsrfProtectedServiceServlet), confer ?!