//...

headerValue = headers.get("Cache-Control");
if (headerValue != null) {
    hasCacheControl = true;
    String[] tokens = headerValue.split(",");
    for (int i = 0; i < tokens.length; i++) {
        String token = tokens[i].trim();
        if (token.equals("no-cache") || token.equals("no-store")) {
            return null;
        } else if (token.startsWith("max-age=")) {
            try {
                maxAge = Long.parseLong(token.substring(8));
            } catch (Exception e) {
            }
        } else if (token.startsWith("stale-while-revalidate=")) {
            try {
                staleWhileRevalidate = Long.parseLong(token.substring(23));
            } catch (Exception e) {
            }
        } else if (token.equals("must-revalidate") || token.equals("proxy-revalidate")) {
            mustRevalidate = true;
        }
    }
}

//...

// Perform the network request.
NetworkResponse networkResponse = mNetwork.performRequest(request);
request.addMarker("network-http-complete");

// If the server returned 304 AND we delivered a response already,
// we're done -- don't deliver a second identical response.
if (networkResponse.notModified && request.hasHadResponseDelivered()) {
    request.finish("not-modified");
    continue;
}

// Parse the response here on the worker thread.
Response<?> response = request.parseNetworkResponse(networkResponse);

// Initialize HttpResponse with data from the HttpURLConnection.
ProtocolVersion protocolVersion = new ProtocolVersion("HTTP", 1, 1);
int responseCode = connection.getResponseCode();
if (responseCode == -1) {
    // -1 is returned by getResponseCode() if the response code could not be retrieved.
    // Signal to the caller that something was wrong with the connection.
    throw new IOException("Could not retrieve response code from HttpUrlConnection.");
}
StatusLine responseStatus = new BasicStatusLine(protocolVersion,
        connection.getResponseCode(), connection.getResponseMessage());
BasicHttpResponse response = new BasicHttpResponse(responseStatus);
if (hasResponseBody(request.getMethod(), responseStatus.getStatusCode())) {
    response.setEntity(entityFromConnection(connection));
}
for (Entry<String, List<String>> header : connection.getHeaderFields().entrySet()) {
    if (header.getKey() != null) {
        Header h = new BasicHeader(header.getKey(), header.getValue().get(0));
        Log.i("kymjs", header.getKey()+"===="+header.getValue().get(0))
        response.addHeader(h);
    }
}
return response;