code: public boolean hasState() {
  		for (OperatorSubtaskState operatorSubtaskState : subtaskStatesByOperatorID.values()) {
  			if (operatorSubtaskState != null && operatorSubtaskState.hasState()) {
  				return true;
  			}
  		}
  		return false;
  	}
docs: Returns true if at least one {@link OperatorSubtaskState} in subtaskStatesByOperatorID has state.