how to get some data from servlet

[danisevsky]

hello, I am using MyMultiFileUploadServlet for uploading files and in some
wicket component I need find out how many files was uploaded.
I was trying to set this number to the HttpSession in
MyMultiFileUploadServlet and get it in the component:

                    HttpSession httpSession = ((WebRequest)
getRequest()).getHttpServletRequest()
                            .getSession();
String count = httpSession
                            .getAttribute("filesCount");

but count is always null. Is there any way how to get some data from
servlet? Thanks