req = RequestFactory.createFromHttpServletRequest(request); long t = req.lastModified();
req = createFromHttpServletRequest(request); long t = (new File(req.getOutputFile())).lastModified();
    public long getLastModified (HttpServletRequest request) {        Request req = null;        try {            req = RequestFactory.createFromHttpServletRequest(request);            long t = req.lastModified();            if (log.isDebugEnabled()) {                log.debug("getLastModified="+(new Date(t)));	    }            return req.lastModified();        } catch (ScillaException ex) {            // ignore        }        return 0L;    }