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Erro método autentica Aula 9 (Interceptor)

Referente ao curso VRaptor4: Alta produtividade com aplicações web em java

por KELVIN STANG OENNING
| 112.4k xp | 33 posts
Desenvolvedor

Antes de colocar o primeiro interceptor da aula 9, meu sistema estava funcionando, mais agora parou. O mesmo só funciona quando o usuário digita uma senha errada, e não é redirecionado para a lista de produtos.

Erro Navegador:

HTTP Status 500 - net.vidageek.mirror.exception.ReflectionProviderException: Could not invoke method autentica

type Exception report

message net.vidageek.mirror.exception.ReflectionProviderException: Could not invoke method autentica

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: net.vidageek.mirror.exception.ReflectionProviderException: Could not invoke method autentica
    br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:120)
root cause

net.vidageek.mirror.exception.ReflectionProviderException: Could not invoke method autentica
    net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:45)
    net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
    br.com.caelum.vraptor.observer.ExecuteMethod.execute(ExecuteMethod.java:87)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
    org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
    org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
    org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
    org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:78)
    br.com.caelum.vraptor.interceptor.AspectStyleInterceptorHandler.execute(AspectStyleInterceptorHandler.java:90)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:98)
    br.com.caelum.vraptor.interceptor.FlashInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
    br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:75)
    br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
    br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.start(DefaultInterceptorStack.java:93)
    br.com.caelum.vraptor.core.DefaultInterceptorStack$Proxy$_$$_WeldClientProxy.start(Unknown Source)
    br.com.caelum.vraptor.observer.RequestHandlerObserver.handle(RequestHandlerObserver.java:86)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
    org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
    org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
    org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
    org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
    br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:116)
root cause

net.vidageek.mirror.exception.ReflectionProviderException: Could not invoke method form
    net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:45)
    net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
    br.com.caelum.vraptor.view.DefaultValidationViewsFactory$2.intercept(DefaultValidationViewsFactory.java:118)
    br.com.caelum.vraptor.proxy.JavassistProxifier$MethodInvocationAdapter.invoke(JavassistProxifier.java:106)
    br.com.caelum.vraptor.controller.LoginController_$$_jvst79d_2.form(LoginController_$$_jvst79d_2.java)
    br.com.caelum.vraptor.controller.LoginController.autentica(LoginController.java:49)
    br.com.caelum.vraptor.controller.LoginController$Proxy$_$$_WeldClientProxy.autentica(Unknown Source)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:38)
    net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
    br.com.caelum.vraptor.observer.ExecuteMethod.execute(ExecuteMethod.java:87)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
    org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
    org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
    org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
    org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:78)
    br.com.caelum.vraptor.interceptor.AspectStyleInterceptorHandler.execute(AspectStyleInterceptorHandler.java:90)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:98)
    br.com.caelum.vraptor.interceptor.FlashInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
    br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:75)
    br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
    br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.start(DefaultInterceptorStack.java:93)
    br.com.caelum.vraptor.core.DefaultInterceptorStack$Proxy$_$$_WeldClientProxy.start(Unknown Source)
    br.com.caelum.vraptor.observer.RequestHandlerObserver.handle(RequestHandlerObserver.java:86)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
    org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
    org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
    org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
    org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
    br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:116)
root cause

br.com.caelum.vraptor.proxy.ProxyInvocationException: java.lang.IllegalStateException: Cannot forward after response has been committed
    br.com.caelum.vraptor.view.DefaultPageResult$1.intercept(DefaultPageResult.java:139)
    br.com.caelum.vraptor.proxy.JavassistProxifier$MethodInvocationAdapter.invoke(JavassistProxifier.java:106)
    br.com.caelum.vraptor.controller.LoginController_$$_jvst79d_2.form(LoginController_$$_jvst79d_2.java)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:38)
    net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
    br.com.caelum.vraptor.view.DefaultValidationViewsFactory$2.intercept(DefaultValidationViewsFactory.java:118)
    br.com.caelum.vraptor.proxy.JavassistProxifier$MethodInvocationAdapter.invoke(JavassistProxifier.java:106)
    br.com.caelum.vraptor.controller.LoginController_$$_jvst79d_2.form(LoginController_$$_jvst79d_2.java)
    br.com.caelum.vraptor.controller.LoginController.autentica(LoginController.java:49)
    br.com.caelum.vraptor.controller.LoginController$Proxy$_$$_WeldClientProxy.autentica(Unknown Source)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:38)
    net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
    br.com.caelum.vraptor.observer.ExecuteMethod.execute(ExecuteMethod.java:87)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
    org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
    org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
    org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
    org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:78)
    br.com.caelum.vraptor.interceptor.AspectStyleInterceptorHandler.execute(AspectStyleInterceptorHandler.java:90)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:98)
    br.com.caelum.vraptor.interceptor.FlashInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
    br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:75)
    br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
    br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.start(DefaultInterceptorStack.java:93)
    br.com.caelum.vraptor.core.DefaultInterceptorStack$Proxy$_$$_WeldClientProxy.start(Unknown Source)
    br.com.caelum.vraptor.observer.RequestHandlerObserver.handle(RequestHandlerObserver.java:86)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
    org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
    org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
    org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
    org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
    br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:116)
root cause

java.lang.IllegalStateException: Cannot forward after response has been committed
    br.com.caelum.vraptor.view.DefaultPageResult$1.intercept(DefaultPageResult.java:135)
    br.com.caelum.vraptor.proxy.JavassistProxifier$MethodInvocationAdapter.invoke(JavassistProxifier.java:106)
    br.com.caelum.vraptor.controller.LoginController_$$_jvst79d_2.form(LoginController_$$_jvst79d_2.java)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:38)
    net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
    br.com.caelum.vraptor.view.DefaultValidationViewsFactory$2.intercept(DefaultValidationViewsFactory.java:118)
    br.com.caelum.vraptor.proxy.JavassistProxifier$MethodInvocationAdapter.invoke(JavassistProxifier.java:106)
    br.com.caelum.vraptor.controller.LoginController_$$_jvst79d_2.form(LoginController_$$_jvst79d_2.java)
    br.com.caelum.vraptor.controller.LoginController.autentica(LoginController.java:49)
    br.com.caelum.vraptor.controller.LoginController$Proxy$_$$_WeldClientProxy.autentica(Unknown Source)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:38)
    net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
    br.com.caelum.vraptor.observer.ExecuteMethod.execute(ExecuteMethod.java:87)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
    org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
    org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
    org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
    org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:78)
    br.com.caelum.vraptor.interceptor.AspectStyleInterceptorHandler.execute(AspectStyleInterceptorHandler.java:90)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:98)
    br.com.caelum.vraptor.interceptor.FlashInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
    br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:75)
    br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
    br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    br.com.caelum.vraptor.core.DefaultInterceptorStack.start(DefaultInterceptorStack.java:93)
    br.com.caelum.vraptor.core.DefaultInterceptorStack$Proxy$_$$_WeldClientProxy.start(Unknown Source)
    br.com.caelum.vraptor.observer.RequestHandlerObserver.handle(RequestHandlerObserver.java:86)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
    org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
    org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
    org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
    org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
    org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
    org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
    br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:116)

Erro Servidor: 

out 21, 2015 3:32:24 PM org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: Servlet.service() for servlet [default] in context with path [/vraptor-produtos] threw exception [net.vidageek.mirror.exception.ReflectionProviderException: Could not invoke method autentica] with root cause
java.lang.IllegalStateException: Cannot forward after response has been committed
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:328)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)
    at br.com.caelum.vraptor.view.DefaultPageResult$1.intercept(DefaultPageResult.java:135)
    at br.com.caelum.vraptor.proxy.JavassistProxifier$MethodInvocationAdapter.invoke(JavassistProxifier.java:106)
    at br.com.caelum.vraptor.controller.LoginController_$$_jvst13f_4.form(LoginController_$$_jvst13f_4.java)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:38)
    at net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
    at br.com.caelum.vraptor.view.DefaultValidationViewsFactory$2.intercept(DefaultValidationViewsFactory.java:118)
    at br.com.caelum.vraptor.proxy.JavassistProxifier$MethodInvocationAdapter.invoke(JavassistProxifier.java:106)
    at br.com.caelum.vraptor.controller.LoginController_$$_jvst13f_4.form(LoginController_$$_jvst13f_4.java)
    at br.com.caelum.vraptor.controller.LoginController.autentica(LoginController.java:49)
    at br.com.caelum.vraptor.controller.LoginController$Proxy$_$$_WeldClientProxy.autentica(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:38)
    at net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
    at br.com.caelum.vraptor.observer.ExecuteMethod.execute(ExecuteMethod.java:87)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
    at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
    at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
    at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
    at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
    at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
    at org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
    at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
    at org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:78)
    at br.com.caelum.vraptor.interceptor.AspectStyleInterceptorHandler.execute(AspectStyleInterceptorHandler.java:90)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    at br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:98)
    at br.com.caelum.vraptor.interceptor.FlashInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    at br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:75)
    at br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.start(DefaultInterceptorStack.java:93)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack$Proxy$_$$_WeldClientProxy.start(Unknown Source)
    at br.com.caelum.vraptor.observer.RequestHandlerObserver.handle(RequestHandlerObserver.java:86)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
    at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
    at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
    at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
    at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
    at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
    at org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
    at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
    at org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
    at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:116)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:526)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:655)
    at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

Alguem pode me ajudar a resolver? já coloquei os devidos injects na classe do controller para poder acessar o UsuarioLogado da sessão, mais não consegui, vou deixar aqui também as devidas classes.

LoginContoller :

package br.com.caelum.vraptor.controller;

import javax.inject.Inject;

import br.com.caelum.vraptor.Controller;
import br.com.caelum.vraptor.Get;
import br.com.caelum.vraptor.Post;
import br.com.caelum.vraptor.Result;
import br.com.caelum.vraptor.annotations.Public;
import br.com.caelum.vraptor.dao.UsuarioDao;
import br.com.caelum.vraptor.model.Usuario;
import br.com.caelum.vraptor.validator.I18nMessage;
import br.com.caelum.vraptor.validator.Validator;

@Controller
public class LoginController {

    private final UsuarioDao usuarioDao;
    private final Validator validator;
    private final Result result;
    private final UsuarioLogado usuarioLogado;

    @Inject
    public LoginController(UsuarioDao usuarioDao, Validator validator, Result result, UsuarioLogado usuarioLogado) {
        this.usuarioDao = usuarioDao;
        this.validator = validator;
        this.result = result;
        this.usuarioLogado = usuarioLogado;
    }

    public LoginController() {
        this(null, null, null, null);
    }

    @Get @Public
    public void form() {
    }

    @Post @Public
    public void autentica(Usuario usuario) {
        if (usuarioDao.existe(usuario)) {
            usuarioLogado.setUsuario(usuario);
            result.redirectTo(ProdutoController.class).lista();
        }
        validator.add(new I18nMessage("login", "login inválido!"));
        validator.onErrorUsePageOf(this).form();

    }
}

AutorizadorInterceptor:

package br.com.caelum.vraptor.interceptor;

import javax.inject.Inject;

import br.com.caelum.vraptor.Accepts;
import br.com.caelum.vraptor.AfterCall;
import br.com.caelum.vraptor.AroundCall;
import br.com.caelum.vraptor.BeforeCall;
import br.com.caelum.vraptor.Intercepts;
import br.com.caelum.vraptor.Result;
import br.com.caelum.vraptor.annotations.Public;
import br.com.caelum.vraptor.controller.ControllerMethod;
import br.com.caelum.vraptor.controller.LoginController;
import br.com.caelum.vraptor.controller.UsuarioLogado;

@Intercepts
public class AutorizadorInterceptor {

    private final UsuarioLogado usuarioLogado;
    private final Result result;
    private final ControllerMethod controllerMethod;

    @Inject
    public AutorizadorInterceptor(Result result, UsuarioLogado usuarioLogado, ControllerMethod controllerMethod) {
        this.result = result;
        this.usuarioLogado = usuarioLogado;
        this.controllerMethod = controllerMethod;
    }

    public AutorizadorInterceptor() {
        this(null,null,null);
    }

    @Accepts
    public boolean accepts(){
        return !controllerMethod.containsAnnotation(Public.class);
    }

    @AroundCall
    public void intercepta(SimpleInterceptorStack stack){
        if(usuarioLogado.getUsuario() == null){
            result.redirectTo(LoginController.class).form();
            return;
        }
        stack.next();
    }

    /*
     * Executado antes da chamada do interceptor
     */
    /*@BeforeCall
    public void before(){

    }*/

    /*
     * Executado depois da chamada do interceptor
     */
    /*@AfterCall
    public void after(){

    }*/
}

Form de login:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Login</title>
</head>
<body>
    <form action="<c:url value="/login/autentica"/>" method="POST">
        <input type="text" name="usuario.nome"/>
        <input type="text" name="usuario.senha"/>
        <input type="submit" value="Autenticar"/>
    </form>

    <c:forEach items="${errors }" var="erro">
        ${erro.category } - ${erro.message }
    </c:forEach>
</body>
</html>

Alguém pode me ajudar, para eu poder dar continuidade ao meu curso? Obrigado.

3 respostas
por Gregory
| 151.4k xp | 22 posts

Ja fez o debug para saber o exato momento que ele lança a exceção?

Ele chega a executar o método autentica todo?

solução!
por KELVIN STANG OENNING
| 112.4k xp | 33 posts
Desenvolvedor

Debugando eu notei que ao entrar no if e setar o usuário, ele saia do if e entrada na condição de usuario invalido logo após o redirect.

O problema estava em não colocar um retono logo após o redirect da página.

@Post @Public
    public void autentica(Usuario usuario) {
        if (usuarioDao.existe(usuario)) {
            usuarioLogado.setUsuario(usuario);
            result.redirectTo(ProdutoController.class).lista();
            return;
        }
        validator.add(new I18nMessage("login", "login inválido!"));
        validator.onErrorUsePageOf(this).form();

    }

Não me atentei para o retorno final, sem ele ao executar o result.redirect ele saia do if e executava os validators.

O código agora está funcionando.

por Gregory
| 151.4k xp | 22 posts

Massa, que bom que deu certo!