// Manda uma notificação de mudança de atributo
NotificationManager notificationManager = Beans.getReference(NotificationManager.class);
Class<? extends Object> attributeType = newValue != null ? newValue.getClass() : null;
AttributeChangeNotification notification = new AttributeChangeNotification(bundle.getString(
"management-notification-attribute-changed", propertyName, managedType.getType()
.getCanonicalName()), propertyName, attributeType, oldValue, newValue);
notificationManager.sendNotification(notification);
} catch (ConstraintViolationException ce) {