@Override
  public EnumSet<TaskState> getPossibleTaskStates() {
    // UNCONFIRMED, CONFIRMED, IN_PROGRESS, RESOLVED (resolution=FIXED)
    return EnumSet.of(TaskState.SUBMITTED, TaskState.OPEN, TaskState.IN_PROGRESS, TaskState.RESOLVED);
  }
@Override
  public EnumSet<TaskState> getPossibleTaskStates()