ContentNegotiationStrategy contentNegotiationStrategy = http.getSharedObject(ContentNegotiationStrategy.class);
if(contentNegotiationStrategy == null) {
contentNegotiationStrategy = new HeaderContentNegotiationStrategy();
}
RequestMatcher notFavIcon = new NegatedRequestMatcher(new AntPathRequestMatcher("/**/favicon.ico"));
MediaTypeRequestMatcher jsonRequest = new MediaTypeRequestMatcher(contentNegotiationStrategy, MediaType.APPLICATION_JSON);
jsonRequest.setIgnoredMediaTypes(Collections.singleton(MediaType.ALL));
RequestMatcher notJson = new NegatedRequestMatcher(jsonRequest);
RequestMatcher notXRequestedWith = new NegatedRequestMatcher(new RequestHeaderRequestMatcher("X-Requested-With","XMLHttpRequest"));
boolean isCsrfEnabled = http.getConfigurer(CsrfConfigurer.class) != null;
List<RequestMatcher> matchers = new ArrayList<RequestMatcher>();
if(isCsrfEnabled) {