Program: 21766
Project: 21766
Buggy source:
/** 
 * The system calls this to perform work in a worker thread and delivers it the parameters given to AsyncTask.execute() 
 */
protected String doInBackground(String... anUrl){
  StringBuilder stringBuilder=new StringBuilder();
  HttpsURLConnection urlConnection=null;
  URL url=null;
  try {
    url=new URL(anUrl[0]);
    if (debugOn) {
      Log.d("String_Node_Str","String_Node_Str" + url.toString());
    }
    urlConnection=(HttpsURLConnection)url.openConnection();
    urlConnection.setDoInput(true);
    urlConnection.setRequestMethod("String_Node_Str");
    String auth=settings.getString(SettingsActivity.PREF_USERNAME,"String_Node_Str") + "String_Node_Str" + settings.getString(SettingsActivity.PREF_PASSWOORD,"String_Node_Str");
    String basicAuth="String_Node_Str" + new String(Base64.encode(auth.getBytes(),Base64.DEFAULT));
    urlConnection.setRequestProperty("String_Node_Str",basicAuth);
    if (Build.VERSION.SDK_INT > 13) {
      urlConnection.setRequestProperty("String_Node_Str","String_Node_Str");
    }
    urlConnection.connect();
    int connectionCode=urlConnection.getResponseCode();
    if (connectionCode == 200) {
      Log.d(TAG,"String_Node_Str");
      BufferedReader reader=new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
      String line;
      while ((line=reader.readLine()) != null) {
        stringBuilder.append(line);
      }
    }
 else {
      connectionError=true;
      Log.e(TAG,"String_Node_Str" + connectionCode);
      return "String_Node_Str";
    }
  }
 catch (  MalformedURLException e) {
    connectionError=true;
    e.printStackTrace();
    Log.e(TAG,e.toString());
    return "String_Node_Str";
  }
catch (  FileNotFoundException e) {
    connectionError=true;
    e.printStackTrace();
    Log.e(TAG,e.toString());
    return "String_Node_Str";
  }
catch (  SSLHandshakeException e) {
    connectionError=true;
    if (debugOn) {
      e.printStackTrace();
      Log.e(TAG,e.toString());
    }
    return "String_Node_Str";
  }
catch (  IOException e) {
    connectionError=true;
    e.printStackTrace();
    Log.e(TAG,e.toString());
    return "String_Node_Str";
  }
 finally {
    if (urlConnection != null) {
      urlConnection.disconnect();
    }
  }
  return stringBuilder.toString();
}

Fixed version (ground truth):
/** 
 * The system calls this to perform work in a worker thread and delivers it the parameters given to AsyncTask.execute() 
 */
protected String doInBackground(String... anUrl){
  StringBuilder stringBuilder=new StringBuilder();
  HttpsURLConnection urlConnection=null;
  URL url=null;
  try {
    url=new URL(anUrl[0]);
    if (debugOn) {
      Log.d("String_Node_Str","String_Node_Str" + url.toString());
    }
    urlConnection=(HttpsURLConnection)url.openConnection();
    urlConnection.setDoInput(true);
    urlConnection.setRequestMethod("String_Node_Str");
    String auth=settings.getString(SettingsActivity.PREF_USERNAME,"String_Node_Str") + "String_Node_Str" + settings.getString(SettingsActivity.PREF_PASSWOORD,"String_Node_Str");
    String basicAuth="String_Node_Str" + new String(Base64.encode(auth.getBytes(),Base64.NO_WRAP));
    urlConnection.setRequestProperty("String_Node_Str",basicAuth);
    if (Build.VERSION.SDK_INT > 13) {
      urlConnection.setRequestProperty("String_Node_Str","String_Node_Str");
    }
    urlConnection.connect();
    int connectionCode=urlConnection.getResponseCode();
    if (connectionCode == 200) {
      Log.d(TAG,"String_Node_Str");
      BufferedReader reader=new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
      String line;
      while ((line=reader.readLine()) != null) {
        stringBuilder.append(line);
      }
    }
 else {
      connectionError=true;
      Log.e(TAG,"String_Node_Str" + connectionCode);
      return "String_Node_Str";
    }
  }
 catch (  MalformedURLException e) {
    connectionError=true;
    e.printStackTrace();
    Log.e(TAG,e.toString());
    return "String_Node_Str";
  }
catch (  FileNotFoundException e) {
    connectionError=true;
    e.printStackTrace();
    Log.e(TAG,e.toString());
    return "String_Node_Str";
  }
catch (  SSLHandshakeException e) {
    connectionError=true;
    if (debugOn) {
      e.printStackTrace();
      Log.e(TAG,e.toString());
    }
    return "String_Node_Str";
  }
catch (  IOException e) {
    connectionError=true;
    e.printStackTrace();
    Log.e(TAG,e.toString());
    return "String_Node_Str";
  }
 finally {
    if (urlConnection != null) {
      urlConnection.disconnect();
    }
  }
  return stringBuilder.toString();
}