Program: 33814
Project: 33814
Buggy source:
@Override protected Void doInBackground(Void... params){
  if (activity == null) {
    throw new IllegalArgumentException("String_Node_Str");
  }
  try {
    ArrayList<Team> teams=new ArrayList<>();
    ArrayList<Event> events=new ArrayList<>();
    int maxPageNum=0;
    for (int pageNum=0; pageNum < 20; pageNum++) {
      int start=pageNum * Constants.API_TEAM_LIST_PAGE_SIZE;
      int end=start + Constants.API_TEAM_LIST_PAGE_SIZE - 1;
      start=start == 0 ? 1 : start;
      publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_LOADING,String.format(activity.getString(R.string.loading_teams),start,end)));
      APIResponse<String> teamListResponse;
      teamListResponse=TBAv2.getResponseFromURLOrThrow(activity,String.format(TBAv2.API_URL.get(TBAv2.QUERY.TEAM_LIST),pageNum),false);
      JsonArray responseObject=JSONManager.getasJsonArray(teamListResponse.getData());
      if (responseObject != null) {
        if (responseObject.size() == 0) {
          break;
        }
      }
      maxPageNum=Math.max(maxPageNum,pageNum);
      ArrayList<Team> pageTeams=TBAv2.getTeamList(teamListResponse.getData());
      teams.addAll(pageTeams);
    }
    for (int year=Constants.FIRST_COMP_YEAR; year < Calendar.getInstance().get(Calendar.YEAR) + 1; year++) {
      publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_LOADING,String.format(activity.getString(R.string.loading_events),Integer.toString(year))));
      APIResponse<String> eventListResponse;
      eventListResponse=TBAv2.getResponseFromURLOrThrow(activity,"String_Node_Str" + year,false);
      JsonElement responseObject=new JsonParser().parse(eventListResponse.getData());
      if (responseObject instanceof JsonObject) {
        if (((JsonObject)responseObject).has("String_Node_Str")) {
          continue;
        }
      }
      ArrayList<Event> yearEvents=TBAv2.getEventList(eventListResponse.getData());
      events.addAll(yearEvents);
    }
    publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_LOADING,activity.getString(R.string.loading_almost_finished)));
    Database.getInstance(activity).getTeamsTable().storeTeams(teams);
    Database.getInstance(activity).getEventsTable().storeEvents(events);
    SharedPreferences.Editor editor=PreferenceManager.getDefaultSharedPreferences(activity).edit();
    for (int pageNum=0; pageNum <= maxPageNum; pageNum++) {
      editor.putBoolean(DataManager.Teams.ALL_TEAMS_LOADED_TO_DATABASE_FOR_PAGE + pageNum,true);
    }
    for (int year=Constants.FIRST_COMP_YEAR; year < Calendar.getInstance().get(Calendar.YEAR) + 1; year++) {
      editor.putBoolean(DataManager.Events.ALL_EVENTS_LOADED_TO_DATABASE_FOR_YEAR + year,true);
    }
    editor.commit();
    publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_FINISHED,activity.getString(R.string.loading_finished)));
  }
 catch (  DataManager.NoDataException e) {
    e.printStackTrace();
    publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_NO_CONNECTION,activity.getString(R.string.connection_lost)));
    Database.getInstance(activity).getResponseTable().deleteAllResponses();
  }
catch (  Exception e) {
    e.printStackTrace();
    Database.getInstance(activity).getResponseTable().deleteAllResponses();
    publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_ERROR,Utilities.exceptionStacktraceToString(e)));
  }
  return null;
}

Fixed version (ground truth):
@Override protected Void doInBackground(Void... params){
  if (activity == null) {
    throw new IllegalArgumentException("String_Node_Str");
  }
  try {
    ArrayList<Team> teams=new ArrayList<>();
    ArrayList<Event> events=new ArrayList<>();
    int maxPageNum=0;
    for (int pageNum=0; pageNum < 20; pageNum++) {
      int start=pageNum * Constants.API_TEAM_LIST_PAGE_SIZE;
      int end=start + Constants.API_TEAM_LIST_PAGE_SIZE - 1;
      start=start == 0 ? 1 : start;
      publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_LOADING,String.format(activity.getString(R.string.loading_teams),start,end)));
      APIResponse<String> teamListResponse;
      teamListResponse=TBAv2.getResponseFromURLOrThrow(activity,String.format(TBAv2.API_URL.get(TBAv2.QUERY.TEAM_LIST),pageNum),false,false);
      JsonArray responseObject=JSONManager.getasJsonArray(teamListResponse.getData());
      if (responseObject != null) {
        if (responseObject.size() == 0) {
          break;
        }
      }
      maxPageNum=Math.max(maxPageNum,pageNum);
      ArrayList<Team> pageTeams=TBAv2.getTeamList(teamListResponse.getData());
      teams.addAll(pageTeams);
    }
    for (int year=Constants.FIRST_COMP_YEAR; year < Calendar.getInstance().get(Calendar.YEAR) + 1; year++) {
      publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_LOADING,String.format(activity.getString(R.string.loading_events),Integer.toString(year))));
      APIResponse<String> eventListResponse;
      eventListResponse=TBAv2.getResponseFromURLOrThrow(activity,"String_Node_Str" + year,false,false);
      JsonElement responseObject=JSONManager.getParser().parse(eventListResponse.getData());
      if (responseObject instanceof JsonObject) {
        if (((JsonObject)responseObject).has("String_Node_Str")) {
          continue;
        }
      }
      ArrayList<Event> yearEvents=TBAv2.getEventList(eventListResponse.getData());
      events.addAll(yearEvents);
    }
    publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_LOADING,activity.getString(R.string.loading_almost_finished)));
    Log.d(Constants.LOG_TAG,"String_Node_Str");
    Database.getInstance(activity).getTeamsTable().storeTeams(teams);
    Log.d(Constants.LOG_TAG,"String_Node_Str");
    Database.getInstance(activity).getEventsTable().storeEvents(events);
    SharedPreferences.Editor editor=PreferenceManager.getDefaultSharedPreferences(activity).edit();
    for (int pageNum=0; pageNum <= maxPageNum; pageNum++) {
      editor.putBoolean(DataManager.Teams.ALL_TEAMS_LOADED_TO_DATABASE_FOR_PAGE + pageNum,true);
    }
    for (int year=Constants.FIRST_COMP_YEAR; year < Calendar.getInstance().get(Calendar.YEAR) + 1; year++) {
      editor.putBoolean(DataManager.Events.ALL_EVENTS_LOADED_TO_DATABASE_FOR_YEAR + year,true);
    }
    editor.commit();
    publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_FINISHED,activity.getString(R.string.loading_finished)));
  }
 catch (  DataManager.NoDataException e) {
    e.printStackTrace();
    publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_NO_CONNECTION,activity.getString(R.string.connection_lost)));
    Database.getInstance(activity).getResponseTable().deleteAllResponses();
  }
catch (  Exception e) {
    e.printStackTrace();
    Database.getInstance(activity).getResponseTable().deleteAllResponses();
    publishProgress(new LoadProgressInfo(LoadProgressInfo.STATE_ERROR,Utilities.exceptionStacktraceToString(e)));
  }
  return null;
}