req4.addHeader("Accept-Encoding", "gzip,identity");
req4.addHeader("If-None-Match", "\"gzip_etag\"");
final HttpRequestWrapper req4Server = HttpRequestWrapper.wrap(new HttpGet(
"http://foo.example.com"));
req4Server.addHeader("Accept-Encoding", "gzip,identity");
req4Server.addHeader("If-None-Match", "\"gzip_etag\"");
final HttpResponse resp4 = new BasicHttpResponse(HttpVersion.HTTP_1_1,
HttpStatus.SC_NOT_MODIFIED, "Not Modified");
resp4.setHeader("Etag", "\"gzip_etag\"");