public void testDelegatingFilterProxyWithTargetFilterLifecycle() throws ServletException, IOException {
ServletContext sc = new MockServletContext();
StaticWebApplicationContext wac = new StaticWebApplicationContext();
wac.setServletContext(sc);
wac.registerSingleton("targetFilter", MockFilter.class);
wac.refresh();
sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);
MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");