logger = NullLoggingServiceImpl.getNullLoggingServiceImpl();
logger = NullLoggingServiceImpl.getLoggingService();
  public ScheduleUtils(UtilsProvider provider) {    if(provider == null) {      logger = NullLoggingServiceImpl.getNullLoggingServiceImpl();    }    else {      logger = (Logger)provider.getLoggingService(this);    }  }