context.addStep(new OperationStepHandler() {
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
ServiceController<?> controller = context.getServiceRegistry(false).getService(ContainerEventHandlerService.SERVICE_NAME);
final ModClusterServiceMBean service = (ModClusterServiceMBean) controller.getValue();
service.enable();
context.completeStep(new OperationContext.RollbackHandler() {
@Override
public void handleRollback(OperationContext context, ModelNode operation) {
service.disable();