Apache HttpClient return cached body on conditional request - caching

Question

I'm using CachingHttpClient implementation of HttpClient from Apache. And having the following scenario:
I made a request for a resource that returned a response with a header:
Cache-Control:max-age=5.
So CachingHttpClient caches the response.
I following I'm making a conditional request for the same resource using If-Modified-Since. And I get a response with status code 304 No modified (btw it does not even checks the server). Without a response body. Which is fine, but I would like to access the cached body, since if its not updated I want to use that.
The question is:
Is there a convenient way to access the cached response from the first call?
(Using org.apache.httpcomponents:httpclient, org.apache.httpcomponents:httpclient-cache; version 4.5.2)
server side:
#RequestMapping("/number")
public int getNumber(HttpServletResponse response, HttpServletRequest request) {
log.info("Number gen called");
response.setHeader("Cache-Control", "max-age=" + 5);
return random.nextInt();
}
client side:
HttpGet httpget = new HttpGet("http://localhost:8080/number");
httpget.setHeader("If-Modified-Since", java.time.format.DateTimeFormatter.RFC_1123_DATE_TIME.
format(ZonedDateTime.now(ZoneId.of("GMT")).minusSeconds(1)));
HttpResponse resp = httpClient.execute(httpget);
log.info("code: " + resp.getStatusLine().getStatusCode());
// here fails because no body on 2. call
String responseString = new BasicResponseHandler().handleResponse(resp);
Http Client Init
#Bean
public HttpClient httpClient() {
return CachingHttpClients.createMemoryBound();
}

Answer 1

Ok so if I configure the cache explicitly, I can use that cache object directly too, so this was a typical RTFM problem, my bad.
#Bean
public HttpCacheStorage httpCacheStorage() {
CacheConfig cacheConfig = CacheConfig.custom()
.setMaxCacheEntries(1000)
.setMaxObjectSize(8192)
.build();
HttpCacheStorage cacheStorage = new BasicHttpCacheStorage(cacheConfig);
return cacheStorage;
}