Getting HTTP bad request when using google integration
<p>I am getting the error HTTP bad request at the time of using google plus api .</p>

<pre><code>public class OAuthActivity extends Activity {

    private SharedPreferences prefs;
    SharedPreferences.Editor prefEdit;
    private Person profile;

    final static int HTTP_RESPONSE_503 = 503;

    String status="status";
    String status_value="";
    String user_id_key="userid";
    String user_id="";
    String name_key="name" ;
    String name="" ;
    String user_type="user_type";
    String planidkey="plan_id";

    String login_status="";
    String username="",passwd="";
    String not_valid="Wrong Credentials";
    String valid="success";
    String plan_id_value="";
    boolean status_flag=false;

    SQLiteDatabase readfromdb,writeindb;
    DatabaseHelper postplanner_dbhelper;
    ContentValues values;
    int ordervalues;

    ProgressDialog pdia;

    SharedPreferencesCredentialStore credentialStore;
    Dialog type_dilog;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        this.prefs = PreferenceManager.getDefaultSharedPreferences(this);

        //       new OAuthRequestTokenTask(this).execute();
    }


    protected void onResume() {
        super.onResume();
        WebView webview = new WebView(this);
        webview.setVisibility(View.VISIBLE);
        webview.getSettings().setJavaScriptEnabled(true);
        setContentView(webview);



        postplanner_dbhelper=new DatabaseHelper(this);

        String googleAuthorizationRequestUrl = new GoogleAuthorizationRequestUrl(
                SharedPreferencesCredentialStore.CLIENT_ID,
                SharedPreferencesCredentialStore.REDIRECT_URI,
                SharedPreferencesCredentialStore.SCOPE).build();

        webview.setWebViewClient(new WebViewClient() {      
            public void onPageFinished(WebView view, String url) {

                if (url.startsWith(SharedPreferencesCredentialStore.REDIRECT_URI)) {
                    try {
                        if (url.indexOf("code=") != -1) {
                            // Url is like http://localhost/?code=4/Z5DgC1IxNL-muPsrE2Sjy9zQn2pF




                            String code = url.substring(
                                    SharedPreferencesCredentialStore.REDIRECT_URI.length() + 7,
                                    url.length());

                            AccessTokenResponse accessTokenResponse = new GoogleAuthorizationCodeGrant(
                                    new NetHttpTransport(),
                                    new JacksonFactory(),
                                    SharedPreferencesCredentialStore.CLIENT_ID,
                                    SharedPreferencesCredentialStore.CLIENT_SECRET,
                                    code, SharedPreferencesCredentialStore.REDIRECT_URI).execute();

                            credentialStore = SharedPreferencesCredentialStore
                            .getInstance(prefs);
                            credentialStore.write(accessTokenResponse);
                            view.setVisibility(View.INVISIBLE);

                            //*********fatch access token google plus ***************       
                            String _email = fetchGoogleEmail(accessTokenResponse.accessToken);
                            retrieveProfile();

                            Log.e("idddd",""+profile);
                            Log.e("idddd",""+profile.getId());

                            prefEdit=prefs.edit();
                            prefEdit.putString("gpuserid", profile.getId());
                            if(_email!="") {
                                Log.i("I","AN I AM NOT EMPTY");
                                prefEdit.putString("gpemail", _email);
                            } // # end if if mail not empty
                            prefEdit.commit();

                            new loginDetails().execute();

                            //finish();
                        }else if (url.indexOf("error=") != -1) {
                            view.setVisibility(View.INVISIBLE);
                            SharedPreferencesCredentialStore.getInstance(prefs)
                            .clearCredentials();
                            showAlertMessage();
                        }
                        /*else {
                            view.setVisibility(View.INVISIBLE);
                            SharedPreferencesCredentialStore.getInstance(prefs)
                                    .clearCredentials();
                            startActivity(new Intent(
                                    OAuthActivity.this,
                                    Login_Webservice.class));
                            finish();
                        }*/

                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }


        });

        webview.loadUrl(googleAuthorizationRequestUrl);
    }

    private void retrieveProfile() {
        try {



            JsonFactory jsonFactory = new JacksonFactory();
            HttpTransport transport = new NetHttpTransport();

            SharedPreferencesCredentialStore credentialStore = SharedPreferencesCredentialStore
            .getInstance(prefs);

            AccessTokenResponse accessTokenResponse = credentialStore.read();

            GoogleAccessProtectedResource accessProtectedResource = new GoogleAccessProtectedResource(
                    accessTokenResponse.accessToken, transport, jsonFactory,
                    SharedPreferencesCredentialStore.CLIENT_ID,
                    SharedPreferencesCredentialStore.CLIENT_SECRET,
                    accessTokenResponse.refreshToken);

            Builder b = Plus.builder(transport, jsonFactory).setApplicationName("Kimunita/1.0");

            b.setHttpRequestInitializer(accessProtectedResource);
            Plus plus = b.build();
            profile = plus.people().get("me").execute();

            //updateViews();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
    //***************Google +code Gourav++++++++++++++++++*/
    private String fetchGoogleEmail(String token) {
        // TODO Auto-generated method stub
        if (token == "") {
            return "";
        }
        JSONObject json = null;
        String email = "";
        String gpUrl = "https://www.googleapis.com/oauth2/v1/userinfo?alt=json&amp;access_token="
            + token;


        Log.e("urll ouathactivity", "" + gpUrl);

        HttpClient httpClient = new DefaultHttpClient();
        HttpGet httpGet = new HttpGet(gpUrl);
        HttpResponse response;

        try {

            response = httpClient.execute(httpGet);
            Log.e("try", "" + response.getStatusLine().getStatusCode());
            if (response.getStatusLine().getStatusCode() == 200) {
                HttpEntity entity = response.getEntity();
                Log.e("entity=====", "" + entity);
                if (entity != null) {
                    InputStream instream = entity.getContent();
                    String jsonstr = convertStreamToString(instream);
                    Log.e("jsonstr======", "" + jsonstr);
                    instream.close();
                    try {
                        JSONObject jsonObj = new JSONObject(jsonstr);
                        email = jsonObj.getString("email");
                        Log.e("email G+ ouathactivity", "" + email);

                    } catch (JSONException e) {
                        e.printStackTrace();
                    }

                } else {
                    json = 
                        genError(response.getStatusLine().getStatusCode(),
                                response.getStatusLine().toString());
                }
            }
        } catch (ClientProtocolException e) {
            try {
                json = genError(HTTP_RESPONSE_503,
                        "Exception: ClientProtocolException");
            } catch (JSONException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        } catch (IOException e) {
            try {
                json = genError(HTTP_RESPONSE_503, "Exception:IOException");
            } catch (JSONException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        } catch (JSONException e) {

            try {
                json = genError(HTTP_RESPONSE_503, "Exception:JSONException");
            } catch (JSONException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        } catch (Exception e) {
            try {
                json = genError(HTTP_RESPONSE_503,
                        "Exception: Exception " + e.toString());
            } catch (JSONException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        } finally {
            httpGet.abort();
        }
        Log.i("GOOGLE +"," EMAIL ===="+email);
        return email;
    }

    private String fetchDataCorrespondingID(String gpuserid) {
        // TODO Auto-generated method stub

        JSONObject json = null;
        JSONObject json1 = null;

        //String gpUrl=AppUtil.server_URL+"/web-service.php?action=GPlogin&amp;id="+gpuserid;
        String gp_email=prefs.getString("gpemail", "");
        String gpUrl=AppUtil.server_URL+"/web-service.php?action=GPlogin&amp;id="+gp_email;
        Log.e("urll ouathactivity",""+gpUrl);

        HttpClient httpClient = new DefaultHttpClient();
        HttpGet httpGet = new HttpGet(gpUrl);
        HttpResponse response;

        try {
            response = httpClient.execute(httpGet);
            if(response.getStatusLine().getStatusCode() == 200) 
            {
                HttpEntity entity = response.getEntity();
                if (entity != null) {
                    InputStream instream = entity.getContent();
                    String jsonstr =convertStreamToString(instream);
                    instream.close();
                    try
                    {
                        JSONObject jsonObj = new JSONObject(jsonstr);

                        JSONObject data=jsonObj.getJSONObject("response");
                        status_value=data.getString(status);
//                      String responseMsg = jsonObj.getString("response");
                        Log.i("data", data.toString());

                        if(status_value.equalsIgnoreCase(not_valid))
                        {
                            status_flag=false;

                        }else if(status_value.equalsIgnoreCase(valid))
                        {

                            status_value=data.getString(status);
                            Log.i("status_value", status_value.toString());
                            user_id=data.getString(user_id_key);
                            Log.i("user_id", user_id.toString());
                            name=data.getString(name_key);
                            Log.i("name", name.toString());
                            plan_id_value=data.getString(planidkey);
                            Log.i("plan_id_value", plan_id_value.toString());
                            status_flag=true;

                        }else
                        {
                            status_flag=false;
                            pdia.dismiss();
                        }

                    } 
                    catch (JSONException e)
                    {
                        e.printStackTrace();
                    }


                } 
                else {
                    json = genError(response.getStatusLine().getStatusCode(), response.getStatusLine().toString());
                }
            } 
        }
        catch (ClientProtocolException e) {
            try {
                json = genError(HTTP_RESPONSE_503, "Exception: ClientProtocolException");
            } catch (JSONException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        } catch (IOException e) {
            try {
                json = genError(HTTP_RESPONSE_503, "Exception: IOException");
            } catch (JSONException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        } catch (JSONException e) {

            try {
                json = genError(HTTP_RESPONSE_503, "Exception: JSONException");
            } catch (JSONException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }  
        } catch (Exception e) {
            try {
                json = genError(HTTP_RESPONSE_503, "Exception: Exception " + e.toString());
            } catch (JSONException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        } finally {
            httpGet.abort();
        }
        return status_value;



    }

    public static JSONObject genError(Integer code, String message) throws JSONException {
        // TODO: HTTP-Status (404, etc), for now return status line
        String msg = "{error: {code: \"" + code.toString() + "\", message: \"" + message + "\"}}";
        Log.e("EEEEEEEEEE",msg );
        return new JSONObject("{error: {code: \"" + code.toString() + "\", message: \"" + message + "\"}}");

    }

    public static String convertStreamToString(InputStream is) {
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        StringBuilder sb = new StringBuilder();

        String line = null;
        try {
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return sb.toString();

    }

}
</code></pre>

<blockquote>
  <p>02-11 12:37:34.869: W/System.err(13631):
  com.google.api.client.http.HttpResponseException: 400 Bad Request
  02-11 12:37:34.869: W/System.err(13631):  at
  com.google.api.client.http.HttpRequest.execute(HttpRequest.java:669)
  02-11 12:37:34.879: W/System.err(13631):  at
  com.google.api.client.auth.oauth2.draft10.AccessTokenRequest.executeUnparsed(AccessTokenRequest.java:459)
  02-11 12:37:34.879: W/System.err(13631):  at
  com.google.api.client.auth.oauth2.draft10.AccessTokenRequest.execute(AccessTokenRequest.java:475)
  02-11 12:37:34.879: W/System.err(13631):  at
  com.Planner.postplanner.OAuthActivity$1.onPageFinished(OAuthActivity.java:181)
  02-11 12:37:34.879: W/System.err(13631):  at
  android.webkit.CallbackProxy.handleMessage(CallbackProxy.java:318)
  02-11 12:37:34.879: W/System.err(13631):  at
  android.os.Handler.dispatchMessage(Handler.java:99) 02-11
  12:37:34.879: W/System.err(13631):    at
  android.os.Looper.loop(Looper.java:137) 02-11 12:37:34.879:
  W/System.err(13631):  at
  android.app.ActivityThread.main(ActivityThread.java:4517) 02-11
  12:37:34.879: W/System.err(13631):    at
  java.lang.reflect.Method.invokeNative(Native Method) 02-11
  12:37:34.879: W/System.err(13631):    at
  java.lang.reflect.Method.invoke(Method.java:511) 02-11 12:37:34.879:
  W/System.err(13631):  at
  com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:993)
  02-11 12:37:34.879: W/System.err(13631):  at
  com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760) 02-11
  12:37:34.879: W/System.err(13631):    at
  dalvik.system.NativeStart.main(Native Method)</p>
</blockquote>
