/* package-visible for testing */ ResponseWrapper clear(Response response) {
if (response.getCode() == 200 || response.getCode() == 201) {
String json = response.getBody();
try {
Gson gson = new GsonBuilder().
registerTypeAdapter(JsonElement.class, new JsonElementDeserializer()).
create();
ResponseWrapper wrapper = gson.fromJson(json, ResponseWrapper.class);
if (wrapper == null) {
throw new JumblrException(response);
}