MultivaluedMap<String, String> headers = new MultivaluedMapImpl();
headers.add(ExtHttpHeaders.IF_MODIFIED_SINCE, ifModifiedSinceDate);
ContainerResponse response = service(WebDAVMethods.GET, path, "", headers, null);
assertEquals(HTTPStatus.OK, response.getStatus());
headers.clear();
IfModifiedSince.add(Calendar.HOUR, +4);
ifModifiedSinceDate = dateFormat.format(IfModifiedSince.getTime());
headers.add(ExtHttpHeaders.IF_MODIFIED_SINCE, ifModifiedSinceDate);
response = service(WebDAVMethods.GET, path, "", headers, null);