Wildlfy logs a warning "WFLYEJB0463: Invalid transaction attribute type REQUIRED on SFSB lifecycle method Method postConstruct() of class class com.test.Test, valid types are REQUIRES_NEW and NOT_SUPPORTED. Method will be treated as NOT_SUPPORTED." for @Stateful-components with CDI lifecycle annotations, even if the Class does not define any Transaction-Attributes:

@Named
@SessionScoped
@Stateful
public class Test implements Serializable
{
	private static final long serialVersionUID = -2055975290009863989L;

	@PostConstruct
	private void postConstruct()
	{}
}

The warning is only created when the @PostConstruct-method is on the class itself and not inherited (which does not make any difference). If the class extends another class, which declares a @PostConstruct-method, the warning does not appear.