people API 질문입니다.

Question

public PeopleService setUp(String code) throws ExecutionException, InterruptedException, IOException {
    return new AsyncTask<String, Void, PeopleService>() {
        @Override
        protected PeopleService doInBackground(String... params) {
            HttpTransport httpTransport = new NetHttpTransport();
            JacksonFactory jsonFactory = new JacksonFactory();

            // Go to the Google API Console, open your application's
            // credentials page, and copy the client ID and client secret.
            // Then paste them into the following code.
            String clientId = context.getString(R.string.firebase_client_id);
            String clientSecret = context.getString(R.string.firebase_client_secret);

            // Or your redirect URL for web based applications.
            String redirectUrl = "urn:ietf:wg:oauth:2.0:oob";

            // Step 2: Exchange -->
            GoogleTokenResponse tokenResponse =
                    null;
            try {
                tokenResponse = new GoogleAuthorizationCodeTokenRequest(
                        httpTransport, jsonFactory, clientId, clientSecret, params[0], redirectUrl)
                        .execute();
            } catch (IOException e) {
                e.printStackTrace();
            }
            // End of Step 2 <--

            GoogleCredential credential = new GoogleCredential.Builder()
                    .setTransport(httpTransport)
                    .setJsonFactory(jsonFactory)
                    .setClientSecrets(clientId, clientSecret)
                    .build()
                    .setFromTokenResponse(tokenResponse);

            PeopleService peopleService =
                    new PeopleService.Builder(httpTransport, jsonFactory, credential).build();
            Log.e(peopleService.getApplicationName());
            Log.e(peopleService.getBaseUrl());
            Log.e(peopleService.getRootUrl());
            Log.e(peopleService.getServicePath());
            try {
                ListConnectionsResponse response = peopleService.people().connections().list("people/me")
                        .setPersonFields("nicknames")
                        .setPersonFields("emailAddresses")
                        .execute();
                Log.e(response.isEmpty()+"");
                Log.e(response.getTotalPeople()+"");
                Log.e(response.getTotalItems()+"");
                Log.e(response.getNextPageToken()+"");
                Log.e(response.getNextSyncToken()+"");
                Log.e(response.getFactory().createJsonObjectParser().toString()+"");
                List<Person> connections = response.getConnections();
                for (Person pp : connections) {
                    Log.e(pp.size()+"");
                    for (Name nn : pp.getNames()) {
                        Log.e(nn.toPrettyString());
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            return peopleService;
        }
    }.execute(code).get();
}

 

위의 방식대로 api를 요청하고있습니다.

하지만

Log 내용을 보시면 아시겠지먼 저 내용들이 다 null로 나옵니다 empty도 true구요 ...

제방법이 어떤게 잘못된건가요??