Transmit data between VaadinServlet and UI

Hello,

I am just trying to migrate my current Vaadin 6 application to Vaadin 7. With help of this forum lot of work is already done but there is a question that I can’t solve at the moment:

In my OSGi-environment I extended the AbstractApplicationServlet-class and could create via protected Application getNewApplication(HttpServletRequest request) throws ServletException { a new Application with parameters my servlet receives. In Vaadin 7 this method doesn’t exist in VaadinServlet.

How can I transmit data between my Servlet and the UI?

Best regards
Stefan