Error deserializing EJB-session, Errors was gone!

Dear All, The deserializing EJB-session Errors was gone! Thank you Alexey Ryndin! Thank you Michael Mok ! Thank you Matt Bauer! Thanks all of your helps! In my programs I only updata the define of "protected ApplicationControlDAO dao " to "protected

Error deserializing EJB-session, Errors was gone!

Dear All, The deserializing EJB-session Errors was gone! Thank you Alexey Ryndin! Thank you Michael Mok ! Thank you Matt Bauer! Thanks all of your helps! In my programs I only updata the define of "protected ApplicationControlDAO dao " to "protected