* be used if the default servlets have not been registered (yet).
*/
private Servlet getDefaultServlet() {
if (defaultServlet == null) {
try {
Servlet servlet = new DefaultServlet();
servlet.init(new SlingServletConfig(servletContext, null,
"Sling Core Default Servlet"));
defaultServlet = servlet;
} catch (ServletException se) {
log.error("Failed to initiliaze Servlet", se);
}