Spring component scanning does not work within JBoss EJB container

The spring scanner functionality do not work when I create my ApplicationContext from a EJB managed by JBoss. I do test the same spring application context on diferents enviroments. Just on a managed EJB on a JBoos it is not workin.

EJB code
appContext = new GenericApplicationContext();
ClassPathBeanDefinitionScanner scanner = new ClassPathBeanDefinitionScanner(appContext);
scanner.scan("com");
appContext.refresh();

Annotated class
@Service
public class TransactionService {

Exception
ERROR: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'transactionService' is defined