@Override
 public void onAddedTo(AbstractBuild build) {
   try {
     BuildAction a = new BuildAction(build);
     FileUtils.writeStringToFile(a.getPollingLogFile(), pollingLog);
     build.addAction(a);
   } catch (IOException e) {
     LOGGER.log(WARNING, "Failed to persist the polling log", e);
   }
   pollingLog = null;
 }