* Executes action; expected to take no arguments.
*/
protected void executeNoArgAction(final String actionId) {
final ObjectSpecification typeOfSpec = getModel().getTypeOfSpecification();
final ObjectAction action = typeOfSpec.getObjectAction(ActionType.USER, actionId);
final ObjectAdapterMemento adapterMemento = getModel().getObjectAdapterMemento();
final ActionMemento actionMemento = new ActionMemento(action);
final ActionModel.Mode actionMode = ActionModel.determineMode(action);
final ActionModel actionModel = ActionModel.create(adapterMemento, actionMemento, actionMode, SingleResultsMode.INLINE);
setResponsePage(new ActionPage(actionModel));