0 Replies Latest reply on Nov 15, 2006 8:56 AM by giordano tamburrelli

    Accessing Bean context

    giordano tamburrelli Newbie

      Hi,

      I'm trying to access the context of my beans that run inside Jboss from an AOP interceptor. AOP framework doesn't provide a method to access the context of the intercepted bean so I have to access the context using JNDI procedures.

      I've written the JNDI code to access a bean in my app (SeamBooking example) from my AOP aspect but something doesn't work.

      Context ctx = new InitialContext();
      HotelBooking hotelBooking = (HotelBooking) ctx.lookup("jboss-seam-booking/HotelBookingAction/remote");
      
      //now calling a method on hotelBooking throws me exceptions
      //but lookup give me a correct reference
      


      The InitialContext and the lookup work fine, and I receive a reference to the desired bean but whn I try to invoke a method on that bean I got the following exceptions:

      14:56:29,124 ERROR [ExceptionInterceptor] redirecting to debug page
      javax.ejb.EJBTransactionRolledbackException: java.lang.IllegalArgumentException: could not set field value: login.user
       at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:93)
       at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130)
       at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:201)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:83)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
       at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:131)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:319)
       at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:58)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.stateful.StatefulRemoteProxy.invoke(StatefulRemoteProxy.java:133)
       at $Proxy319.prova(Unknown Source)
       at org.jboss.seam.example.booking.aop.LoggerAspect.logger(LoggerAspect.java:59)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.aop.advice.PerJoinpointAdvice.invoke(PerJoinpointAdvice.java:159)
       at org.jboss.seam.example.booking.LoginAction$login_6137611953264566211.invokeNext(LoginAction$login_6137611953264566211.java)
       at org.jboss.seam.example.booking.LoginAction.login(LoginAction.java)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
       at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57)
       at org.jboss.seam.interceptors.ValidationInterceptor.validateTargetComponent(ValidationInterceptor.java:65)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.OutcomeInterceptor.interceptOutcome(OutcomeInterceptor.java:23)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.RollbackInterceptor.rollbackIfNecessary(RollbackInterceptor.java:32)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.BijectionInterceptor.bijectTargetComponent(BijectionInterceptor.java:51)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.ConversationInterceptor.endOrBeginLongRunningConversation(ConversationInterceptor.java:60)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.BusinessProcessInterceptor.manageBusinessProcessContext(BusinessProcessInterceptor.java:50)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.ConversationalInterceptor.checkConversationForConversationalBean(ConversationalInterceptor.java:81)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.EventInterceptor.aroundInvoke(EventInterceptor.java:51)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.RemoveInterceptor.removeIfNecessary(RemoveInterceptor.java:40)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.intercept.RootInterceptor.invokeInContexts(RootInterceptor.java:168)
       at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:141)
       at org.jboss.seam.intercept.RootInterceptor.aroundInvoke(RootInterceptor.java:128)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
       at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
       at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
       at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:131)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:211)
       at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:79)
       at $Proxy322.login(Unknown Source)
       at org.jboss.seam.example.booking.Login$$FastClassByCGLIB$$62bfbf41.invoke(<generated>)
       at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
       at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:47)
       at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:67)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57)
       at org.jboss.seam.interceptors.ExceptionInterceptor.handleExceptions(ExceptionInterceptor.java:28)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.AsynchronousInterceptor.invokeAsynchronouslyIfNecessary(AsynchronousInterceptor.java:29)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.intercept.RootInterceptor.invokeInContexts(RootInterceptor.java:168)
       at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:141)
       at org.jboss.seam.intercept.RootInterceptor.aroundInvoke(RootInterceptor.java:128)
       at org.jboss.seam.intercept.ClientSideInterceptor.interceptInvocation(ClientSideInterceptor.java:60)
       at org.jboss.seam.intercept.ClientSideInterceptor.intercept(ClientSideInterceptor.java:47)
       at org.jboss.seam.intercept.Proxy$$EnhancerByCGLIB$$6882c5b6.login(<generated>)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at com.sun.el.parser.AstValue.invoke(AstValue.java:151)
       at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:283)
       at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
       at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:69)
       at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
       at javax.faces.component.UICommand.broadcast(UICommand.java:106)
       at org.ajax4jsf.framework.ajax.AjaxViewRoot.processEvents(AjaxViewRoot.java:274)
       at org.ajax4jsf.framework.ajax.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:250)
       at org.ajax4jsf.framework.ajax.AjaxViewRoot.processApplication(AjaxViewRoot.java:405)
       at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:343)
       at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:67)
       at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:223)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
       at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
       at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
       at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
       at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
       at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
       at java.lang.Thread.run(Thread.java:595)
      Caused by: java.lang.IllegalArgumentException: could not set field value: login.user
       at org.jboss.seam.Component.setFieldValue(Component.java:1430)
       at org.jboss.seam.Component.injectFields(Component.java:1219)
       at org.jboss.seam.Component.inject(Component.java:989)
       at org.jboss.seam.interceptors.BijectionInterceptor.bijectTargetComponent(BijectionInterceptor.java:48)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.ConversationInterceptor.endOrBeginLongRunningConversation(ConversationInterceptor.java:60)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.BusinessProcessInterceptor.manageBusinessProcessContext(BusinessProcessInterceptor.java:50)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.ConversationalInterceptor.checkConversationForConversationalBean(ConversationalInterceptor.java:81)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.EventInterceptor.aroundInvoke(EventInterceptor.java:51)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.interceptors.RemoveInterceptor.removeIfNecessary(RemoveInterceptor.java:40)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:17)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:172)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:66)
       at org.jboss.seam.intercept.RootInterceptor.invokeInContexts(RootInterceptor.java:168)
       at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:141)
       at org.jboss.seam.intercept.RootInterceptor.aroundInvoke(RootInterceptor.java:128)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
       at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:71)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
       ... 208 more
      Caused by: java.lang.IllegalArgumentException: Could not set field value by reflection: LoginAction.user on: org.jboss.seam.example.booking.HotelBookingAction with value: class org.jboss.seam.example.booking.User
       at org.jboss.seam.util.Reflections.set(Reflections.java:74)
       at org.jboss.seam.Component.setFieldValue(Component.java:1426)
       ... 275 more
      Caused by: java.lang.IllegalArgumentException
       at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:37)
       at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:57)
       at java.lang.reflect.Field.set(Field.java:656)
       at org.jboss.seam.util.Reflections.set(Reflections.java:60)
       ... 276 more
      


      Someone have any hints bout that ???

      Thx ;-)