Pelo que parece o problema é o scanning do JBOSS 6.1.0. Rodei a app com a versão 6.0.0 Final e rodou blz
18:57:11,181 INFO [BasicConfiguration] Using class br.com.caelum.vraptor.ioc.spring.SpringProvider as Container Provider
18:57:11,186 INFO [DefaultSpringLocator] No application context found
18:57:11,216 INFO [WebAppBootstrapFactory] No static WebAppBootstrap found.
18:57:11,216 INFO [BasicConfiguration] br.com.caelum.vraptor.scanning = null
18:57:11,266 INFO [ScannotationComponentScanner] scanning url vfs:/C:/desenvolvimento/jboss-6.0.0.Final/server/default/deploy/sicg.war/WEB-INF/lib/vraptor-3.4.0.jar/br/com/caelum/vraptor/util/hibernate/
18:57:11,271 INFO [ScannotationComponentScanner] real file for url vfs:/C:/desenvolvimento/jboss-6.0.0.Final/server/default/deploy/sicg.war/WEB-INF/lib/vraptor-3.4.0.jar/br/com/caelum/vraptor/util/hibernate/ is C:\desenvolvimento\jboss-6.0.0.Final\server\default\tmp\vfs\automount61a19d2aee34ea33\vraptor-3.4.0.jar-f2ab012ec566d7f\contents\br\com\caelum\vraptor\util\hibernate
18:57:11,276 INFO [ScannotationComponentScanner] scanning url vfs:/C:/desenvolvimento/jboss-6.0.0.Final/server/default/deploy/sicg.war/WEB-INF/lib/saci-1.1.jar/br/com/bronx/vraptor/saci/
18:57:11,276 INFO [ScannotationComponentScanner] real file for url vfs:/C:/desenvolvimento/jboss-6.0.0.Final/server/default/deploy/sicg.war/WEB-INF/lib/saci-1.1.jar/br/com/bronx/vraptor/saci/ is C:\desenvolvimento\jboss-6.0.0.Final\server\default\tmp\vfs\automount61a19d2aee34ea33\saci-1.1.jar-fb8cae2e5aff5756\contents\br\com\bronx\vraptor\saci
18:57:11,311 INFO [STDOUT] 12-04-18 18:57:11,306 [INFO] org.springframework.context.support.AbstractApplicationContext AbstractApplicationContext.java - Refreshing Root WebApplicationContext: startup date [Wed Apr 18 18:57:11 BRT 2012]; root of context hierarchy
18:57:11,316 INFO [STDOUT] 12-04-18 18:57:11,316 [INFO] org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider ClassPathScanningCandidateComponentProvider.java - JSR-250 'javax.annotation.ManagedBean' found and supported for component scanning
18:57:11,316 INFO [STDOUT] 12-04-18 18:57:11,316 [INFO] org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider ClassPathScanningCandidateComponentProvider.java - JSR-330 'javax.inject.Named' annotation found and supported for component scanning
18:57:11,336 INFO [STDOUT] 12-04-18 18:57:11,336 [INFO] org.springframework.beans.factory.support.DefaultListableBeanFactory DefaultListableBeanFactory.java - Overriding bean definition for bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor': replacing [Root bean: class [org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] with [Root bean: class [br.com.caelum.vraptor.ioc.spring.InjectionBeanPostProcessor]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null]
18:57:11,351 INFO [STDOUT] 12-04-18 18:57:11,351 [INFO] org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor AutowiredAnnotationBeanPostProcessor.java - JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
18:57:11,371 INFO [STDOUT] 12-04-18 18:57:11,371 [INFO] org.springframework.beans.factory.support.DefaultListableBeanFactory DefaultListableBeanFactory.java - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@2b6772: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,interceptorListPriorToExecutionExtractor,defaultResourceTranslator,defaultRestDefaults,paranamerNameProvider,defaultAcceptHeaderToFormat,validatorFactoryCreator,pathAnnotationRoutesParser,objenesisInstanceCreator,encodingHandlerFactory,noRoutesConfiguration,defaultRoutes,messageInterpolatorFactory,defaultMultipartConfig,hibernateProxyInitializer,javaEvaluator,topologicalSortedInterceptorRegistry,defaultInterceptorHandlerFactory,JSR303ValidatorFactory,defaultRouter,defaultTypeFinder,defaultResourceNotFoundHandler,XStreamConverters.NullConverter,defaultConverters,defaultMethodNotAllowedHandler,defaultDeserializers,defaultTypeNameExtractor,cglibProxifier,stereotypeHandler,converterHandler,interceptorStereotypeHandler,deserializesHandler,stereotypedBeansRegistrar,defaultSpringLocator,defaultExceptionMapper,XStreamXMLSerialization,emptyResult,defaultStatus,defaultPathResolver,replicatorOutjector,applicationConfiguration,XStreamJSONSerialization,JSR303Validator,messageConverter,XStreamJSONPSerialization,HTMLSerialization,defaultFormatResolver,XStreamXMLDeserializer,sessionFlashScope,executeMethodInterceptor,defaultValidationViewsFactory,parametersInstantiatorInterceptor,flashInterceptor,XStreamConverters,exceptionHandlerInterceptor,emptyElementsRemoval,defaultValidator,servlet3MultipartInterceptor,defaultRepresentationResult,jstlLocalization,ognlParametersProvider,defaultRestHeadersHandler,forwardToDefaultViewInterceptor,instantiateInterceptor,defaultResult,defaultMethodInfo,deserializingInterceptor,defaultLogicResult,resourceLookupInterceptor,downloadInterceptor,outjectResult,defaultRefererResult,defaultPageResult,jsonDeserializer,ognlFacade,defaultHttpResult,localeBasedCalendarConverter,byteConverter,doubleConverter,localDateTimeConverter,primitiveFloatConverter,bigIntegerConverter,booleanConverter,primitiveShortConverter,characterConverter,uploadedFileConverter,localeBasedDateConverter,primitiveByteConverter,enumConverter,integerConverter,primitiveBooleanConverter,primitiveCharConverter,floatConverter,primitiveDoubleConverter,primitiveIntConverter,primitiveLongConverter,stringConverter,longConverter,localTimeConverter,shortConverter,bigDecimalConverter,localDateConverter,VRaptorRequestProvider,httpServletRequestProvider,httpServletResponseProvider,httpSessionProvider,XStreamBuilderImpl,enhancedRequestExecution,defaultInterceptorStack,org.springframework.aop.config.internalAutoProxyCreator,contatoController,naturezaController,accessControllerInterceptor,classificacaoController,recorteTematicoValidacao,contatoConverter,contatoDAOImpl,restrictionChecker,sessionCreator,helpOnLineDAOImpl,contatoValidacao,restrictor,recorteTematicoDAOImpl,recorteTematicoController,helpOnLineController,referenciaBibliograficaDAOImpl,classificacaoValidacao,referenciaBibliograficaController,hibernateTransactionInterceptor,parameterLoaderInterceptor,controleAcessoRegra,restrictionValidator,naturezaDAOImpl,naturezaValidacao,classificacaoDAOImpl,sessionFactoryCreator,pageChecker,pageHandler]; root of factory hierarchy
18:57:11,601 INFO [Version] Hibernate Commons Annotations 3.2.0.Final
18:57:11,616 INFO [Environment] Hibernate 3.6.0.Final
Não acho que essa seja a melhor saída, mas pra tocar o projeto ta valendo. Caso precise que eu faça alguns testes no JBOSS 6.1.0 é só avisar