code: private void checkForEmptyBuildSetTask(BuildSetTask buildSetTask) {
          if (buildSetTask.getBuildTasks() == null || buildSetTask.getBuildTasks().isEmpty()) {
              updateBuildSetTaskStatus(buildSetTask, BuildSetStatus.REJECTED, "Build config set is empty");
          }
      }
docs: Check if the given build set task is empty and update the status message appropriately