Im in the middle of the process of converting my jdbc application to hibernate (swing + mysql). Its a multiuser thick client. After doing some research on the internet, I found out that multi user swing + hibernate combination does not seem to work well. Im thinking of adding a middle tier component which will use hibernate to connect to the database and serve the data for the swing clients.
Would you guys please provide me some information like how the architecture should be. What should I use for communication between swing and middle tier? like RMI or Corba
And I should also keep in mind that I wont have much problems later to convert the application into web application.

In my understanding, you can use session EJB with session facade pattern. But if you are not willing to use an Application Server, The next best thing is to use RMI. In future when you want to convert your front end to web application you still can use RMI for remote calls or directly invoke your code from Web App(bypassing RMI flow) and if you want to convert your RMI stuff into EJB that too would be very easy transition.