Android Blog Reader "GetBlogPosts" class

private class GetBlogPostsTask extends AsyncTask<Object, Void, String> {

        @Override
        protected String doInBackground(Object[] objects) {
            int responseCode = -1;
            try {
                URL blogFeedUrl = new URL("http://blog.teamtreehouse.com/api/get_recent_summary/?count=" + NUMBER_OF_POSTS);
                HttpURLConnection connection = (HttpURLConnection) blogFeedUrl.openConnection();
                connection.connect();

                responseCode = connection.getResponseCode();
                if (responseCode == HttpsURLConnection.HTTP_OK) {
                    InputStream inputStream = connection.getInputStream();
                    Reader reader = new InputStreamReader(inputStream);
                    int contentLength = connection.getContentLength();
                    char[] charArray = new char[contentLength];
                    reader.read(charArray);
                    String responseData = new String(charArray);

                    JSONObject jsonResponse = new JSONObject(responseData);
                    String status = jsonResponse.getString("status");
                    Log.v(TAG, status);

                    JSONArray jsonPosts = jsonResponse.getJSONArray("posts");
                    for (int i = 0; i < jsonPosts.length(); i++){
                        JSONObject jsonPost = jsonPosts.getJSONObject(i);
                        String title = jsonPost.getString("title");
                        Log.v(TAG, "Post " + i + ": " + title);
                    }
                }
                else {
                    Log.i(TAG, "Unsuccessful HTTP Response Code: " + responseCode);
                }
            }
            catch (MalformedURLException e){
                Log.e(TAG, "Exception caught: ", e);
            }
            catch (IOException e){
                Log.e(TAG, "Exception caught: ", e);
            }
            catch (Exception e){
                Log.e(TAG, "Exception caught: ", e);
            }

            return "Code: " + responseCode;
        }
    }