VRaptor em uma aplicação que já utilza Spring

Assuntos Gerais
#1

Estou tendo um problema ao tentar inserir o VRaptor (3.1.1) em uma aplicação que já utiliza o String.
Segue o stacktrace e logo abaixo a descrição do problema. Alguma idéia?

####<29/04/2010 14h19min51s BRT> <Error> <HTTP> <info_12556> <AdminServer> <[ACTIVE] ExecuteThread: '14' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <> <1272561591932> <BEA-101020> <[ServletContext@30341233[app:circuitos-ear-1 module:/circuitos path:/circuitos spec-version:null]] Servlet failed with Exception
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'multipartInterceptor': Unsatisfied dependency expressed through constructor argument with index 0 of type [javax.servlet.http.HttpServletRequest]: : Error creating bean with name 'httpServletRequestProvider': FactoryBean threw exception on object creation; nested exception is java.lang.NullPointerException; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'httpServletRequestProvider': FactoryBean threw exception on object creation; nested exception is java.lang.NullPointerException
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:591)
	at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:193)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:925)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:835)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
	at org.springframework.beans.factory.support.AbstractBeanFactory$2.getObject(AbstractBeanFactory.java:302)
	at org.springframework.web.context.request.AbstractRequestAttributesScope.get(AbstractRequestAttributesScope.java:43)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:308)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:297)
	at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:942)
	at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:224)
	at br.com.caelum.vraptor.ioc.spring.VRaptorApplicationContext.getBean(VRaptorApplicationContext.java:244)
	at br.com.caelum.vraptor.ioc.spring.SpringBasedContainer.instanceFor(SpringBasedContainer.java:59)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:47)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:65)
	at br.com.caelum.vraptor.core.DefaultRequestExecution.execute(DefaultRequestExecution.java:70)
	at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:92)
	at br.com.caelum.vraptor.ioc.spring.SpringProvider.provideForRequest(SpringProvider.java:47)
	at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:89)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at br.com.cvc.circuitos.ui.autenticacao.AutenticacaoCircuitosFilter.doFilter(AutenticacaoCircuitosFilter.java:157)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3588)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2200)
	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2106)
	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1428)
	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
	at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'httpServletRequestProvider': FactoryBean threw exception on object creation; nested exception is java.lang.NullPointerException
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport$1.run(FactoryBeanRegistrySupport.java:127)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:116)
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:98)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1285)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:217)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:671)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:610)
	at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:622)
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:584)
	at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:193)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:925)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:835)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
	at org.springframework.beans.factory.support.AbstractBeanFactory$2.getObject(AbstractBeanFactory.java:302)
	at org.springframework.web.context.request.AbstractRequestAttributesScope.get(AbstractRequestAttributesScope.java:43)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:308)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:297)
	at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:942)
	at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:224)
	at br.com.caelum.vraptor.ioc.spring.VRaptorApplicationContext.getBean(VRaptorApplicationContext.java:244)
	at br.com.caelum.vraptor.ioc.spring.SpringBasedContainer.instanceFor(SpringBasedContainer.java:59)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:47)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:65)
	at br.com.caelum.vraptor.core.DefaultRequestExecution.execute(DefaultRequestExecution.java:70)
	at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:92)
	at br.com.caelum.vraptor.ioc.spring.SpringProvider.provideForRequest(SpringProvider.java:47)
	at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:89)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at br.com.cvc.circuitos.ui.autenticacao.AutenticacaoCircuitosFilter.doFilter(AutenticacaoCircuitosFilter.java:157)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3588)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2200)
	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2106)
	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1428)
	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
	at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
java.lang.NullPointerException
	at br.com.caelum.vraptor.ioc.spring.HttpServletRequestProvider.getObject(HttpServletRequestProvider.java:36)
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport$1.run(FactoryBeanRegistrySupport.java:121)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:116)
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:98)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1285)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:217)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:671)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:610)
	at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:622)
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:584)
	at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:193)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:925)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:835)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
	at org.springframework.beans.factory.support.AbstractBeanFactory$2.getObject(AbstractBeanFactory.java:302)
	at org.springframework.web.context.request.AbstractRequestAttributesScope.get(AbstractRequestAttributesScope.java:43)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:308)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:297)
	at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:942)
	at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:224)
	at br.com.caelum.vraptor.ioc.spring.VRaptorApplicationContext.getBean(VRaptorApplicationContext.java:244)
	at br.com.caelum.vraptor.ioc.spring.SpringBasedContainer.instanceFor(SpringBasedContainer.java:59)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:47)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:65)
	at br.com.caelum.vraptor.core.DefaultRequestExecution.execute(DefaultRequestExecution.java:70)
	at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:92)
	at br.com.caelum.vraptor.ioc.spring.SpringProvider.provideForRequest(SpringProvider.java:47)
	at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:89)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at br.com.cvc.circuitos.ui.autenticacao.AutenticacaoCircuitosFilter.doFilter(AutenticacaoCircuitosFilter.java:157)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3588)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2200)
	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2106)
	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1428)
	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
	at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)[/code]

[code]package br.com.myapp.controller;

@Resource
public class JobsController {

    @Get
    @Path("/jobs")
    public List<String> list() {
        return new ArrayList<String>();
    }
}

web.xml

[code]
br.com.caelum.vraptor.packages
br.com.myapp.controller

VRaptor Filter vraptor br.com.caelum.vraptor.VRaptor vraptor /jobs FORWARD REQUEST [/code]

Debugando o VRaptor, ao invocar uma url http://localhost:7001/myapp/jobs, em dado ponto o fluxo cai no método provideForRequest da classe SpringProvider

if (springListenerAlreadyCalled()) { return execution.insideRequest(getContainer()); } VRaptorRequestHolder.setRequestForCurrentThread(request); ...

Como o spring já foi chamado, o fluxo cai dentro do if e retorna, não executando a instrução VRaptorRequestHolder.setRequestForCurrentThread(request).

Mais a frente, no DefaultRequestExecution.execute() é populado uma interceptionStack e então executado cada um dos interceptors. O primeiro interceptor da fila é o MultipartInterceptor.
Na classe ToInstantiateInterceptor é executada a seguinte instrução:

Que cai em SpringBasedContainer.instanceFor(MultipartInterceptor), que cai em VRaptorApplicationContext.getBean(MultipartInterceptor) e por sua vez executa a instrução BeanFactoryUtils.beansOfTypeIncludingAncestors(this, MultipartInterceptor)

Em algum momento dentro da lógica de ‘beansOfTypeIncludingAncestors’ ele chama um método do VRaptor HttpServletRequestProvider.getObject() cujo executa a instrução VRaptorRequestHolder.currentRequest().getRequest()

Aqui está o problema pois VRaptorRequestHolder.currentRequest() retorna null
Veja que é o mesmo VRaptorRequestHolder lá do início que, por o Spring já ter sido chamado, não foi executada a instrução VRaptorRequestHolder.setRequestForCurrentThread(request);
Será que está faltando alguma configuração no VRaptor ou Spring?

#2

isso está acontecendo dentro de uma requisição normal, ou dentro de um forward?

se foi um forward, como vc tá fazendo esse forward?

#3

Requisição normal mesmo Lucas, direto pelo browser.

#4

a jsp de resultado dessa lógica existe?

vc sobrescreveu o PathResolver do vraptor?

#5

Sim. A jsp existe em: src/main/webapp/WEB-INF/jsp/jobs/list.jsp
E não sobrescrevi o PathResolver não.

#6

coloca um breakpoint no SpringProvider.provideForRequest, e ve se nessa requisição ele tá passando 2 vezes por esse método

pelo menos uma vez ele deveria executar o método inteiro (sem entrar no primeiro if)

está acontecendo isso?

#7

Está caindo em SpringProvider.provideForRequest apenas uma vez.
E nesta vez já entra no if

#8

vc tem um algum listener ou filtro do spring configurado? se sim, tenta trocar de ordem a declaração do vraptor com esse filtro ou listener

#9

Bingo. Mudar a ordem não funcionou, mas pelo menos encontramos o problema.
Se eu tirar o seguinte Listener do web.xml a requisição funciona:

<listener> <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class> </listener>

#10

com o vraptor vc não precisa desse listener, pois o vraptor já faz praticamente o que esse listener faz

#11

Recussitando o post … só pra não deixá-lo sem conclusão.
Essa mesma aplicação utiliza JSF, por isso o uso do Listener do Spring.
O que fiz foi extender o RequestContextListener do Spring para tratá-lo quando for uma requisição onde o VRaptor deva responder.

Valeu pela ajuda Lucas.

#12

Zinho, aqui estou eu 3 anos depois ressuscitando o post que você já havia ressuscitado e morreu de novo! hehehe

Cara, na sua implementação do RequestContextListener do Spring, o que você faz quando identifica que a requisição é na verdade do VRaptor?

A minha situação é exatamente como a sua: tenho uma aplicação JSF, e vou colocar alguns módulos com VRaptor. Esses 2 vão ter que aprender a conviver juntos até eu conseguir migrar toda a camada de apresentação para o VRaptor.

Desde já, agradeço pela força.

Att.

Marcio Lima

#13