ParametredHttpServlet
ConfiguredHttpServlet
    private void disableCache(JspWriter writer) throws IOException {        try {            ServletResponse servletResponse = pageContext.getResponse();            if (servletResponse instanceof HttpServletResponse) {                ParametredHttpServlet                        .setNoCache((HttpServletResponse) servletResponse);            }        } catch (Throwable th) {            LOG.debug("Too late to specify NO-CACHE into HttpResponse !", th);        }        writer                .println("<META http-equiv=\"cache-control\" content=\"no-cache\" />");        writer.println("<META http-equiv=\"pragma\" content=\"no-cache\" />");        writer.println("<META http-equiv=\"expires\" content=\"0\" /> ");    }