printWriter.println("<p>User principal: " + request.getUserPrincipal() + "</p>"); printWriter.println("<p>Is requested session id from cookie: " + request.isRequestedSessionIdFromCookie() + "</p>"); printWriter.println("<p>Is requested session id from URL: " + request.isRequestedSessionIdFromURL() + "</p>"); printWriter.println("<p>Is requested session id valid " + request.isRequestedSessionIdValid() + "</p>"); printWriter.println("<ul>");