I have a Customized Security Filter added to the server of the application. If i run the SWT UI for the application it shows a Login Dialog at startup. But if i run the RAP UI (the only one im interested in) there is no dialog. I think i can do the same implementation for the RAP. But that would mean to have two different Authentications mechanisms. Is there some way to invoke the Server side authentication, and by this generating a login dialog in the web browser?