[JBoss Seam] - Seam eats exceptions - jboss-user

Friday, 7 December 2007

Hello all,

the following problem cost two days of my life ...

I had an ClassCastException in one of my property getters. Ok, admitted, it was my fault,
but it is not very nice that Seam completely eats up this exception. Nothing about it in
the logs, absolutely nothing.

Just useful hints like "don't @Begin in a long running conversation, try
join=true" and so on. Of course I know that exceptions can cause totally different
followup exceptions, so I am used to ignore exceptions I don't understand, searching
for collateral exceptions I understand better. But there were none, just this "use
join" thing.

So I went into deep - how could the conversation context be lost? I stepped through half
of Seam. For two days. Then I found my component being inexpectedly "removed"
from conversation context.

This remove was called from RemoveInterceptor.removeIfNecessary, and in that method, I was
able to have a look at the root causing exception.

I could not really figure out why this exception isn't logged at all, but I think it
would clearly better if it was ...

I was able to call printStackTrace in the debugger, so I can give you a strack trace of
the original exception. Perhaps it helps:

  | 11:14:07,021 ERROR [STDERR] java.lang.reflect.InvocationTargetException
  | 11:14:07,021 ERROR [STDERR] 	at sun.reflect.GeneratedMethodAccessor134.invoke(Unknown
Source)
  | 11:14:07,021 ERROR [STDERR] 	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 11:14:07,021 ERROR [STDERR] 	at java.lang.reflect.Method.invoke(Method.java:585)
  | 11:14:07,021 ERROR [STDERR] 	at
org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
  | 11:14:07,021 ERROR [STDERR] 	at
org.jboss.seam.Component.getPropertyValue(Component.java:1753)
  | 11:14:07,021 ERROR [STDERR] 	at
org.jboss.seam.Component.access$400(Component.java:138)
  | 11:14:07,021 ERROR [STDERR] 	at
org.jboss.seam.Component$BijectedMethod.get(Component.java:2515)
  | 11:14:07,021 ERROR [STDERR] 	at
org.jboss.seam.Component$BijectedProperty.get(Component.java:2553)
  | 11:14:07,021 ERROR [STDERR] 	at
org.jboss.seam.Component.outjectDataModel(Component.java:1519)
  | 11:14:07,021 ERROR [STDERR] 	at
org.jboss.seam.Component.outjectDataModels(Component.java:1511)
  | 11:14:07,021 ERROR [STDERR] 	at org.jboss.seam.Component.outject(Component.java:1463)
  | 11:14:07,021 ERROR [STDERR] 	at
org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:47)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.persistence.ManagedEntityIdentityInterceptor.aroundInvoke(ManagedEntityIdentityInterceptor.java:48)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.core.ConversationInterceptor.aroundInvoke(ConversationInterceptor.java:65)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.persistence.EntityManagerProxyInterceptor.aroundInvoke(EntityManagerProxyInterceptor.java:26)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.persistence.HibernateSessionProxyInterceptor.aroundInvoke(HibernateSessionProxyInterceptor.java:27)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:50)
  | 11:14:07,053 ERROR [STDERR] 	at sun.reflect.GeneratedMethodAccessor103.invoke(Unknown
Source)
  | 11:14:07,053 ERROR [STDERR] 	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 11:14:07,053 ERROR [STDERR] 	at java.lang.reflect.Method.invoke(Method.java:585)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:57)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:83)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:106)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:204)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:100)
  | 11:14:07,053 ERROR [STDERR] 	at $Proxy141.getVersion(Unknown Source)
  | 11:14:07,053 ERROR [STDERR] 	at sun.reflect.GeneratedMethodAccessor136.invoke(Unknown
Source)
  | 11:14:07,053 ERROR [STDERR] 	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 11:14:07,053 ERROR [STDERR] 	at java.lang.reflect.Method.invoke(Method.java:585)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:76)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.ejb.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:41)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54)
  | 11:14:07,053 ERROR [STDERR] 	at
org.javassist.tmp.java.lang.Object_$$_javassist_5.getVersion(Object_$$_javassist_5.java)
  | 11:14:07,053 ERROR [STDERR] 	at sun.reflect.GeneratedMethodAccessor135.invoke(Unknown
Source)
  | 11:14:07,053 ERROR [STDERR] 	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 11:14:07,053 ERROR [STDERR] 	at java.lang.reflect.Method.invoke(Method.java:585)
  | 11:14:07,053 ERROR [STDERR] 	at
javax.el.BeanELResolver.getValue(BeanELResolver.java:62)
  | 11:14:07,053 ERROR [STDERR] 	at
javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
  | 11:14:07,053 ERROR [STDERR] 	at
com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.el.parser.AstPropertySuffix.getTarget(AstPropertySuffix.java:38)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.el.parser.AstValue.getTarget(AstValue.java:47)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.el.parser.AstValue.setValue(AstValue.java:83)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.el.ValueExpressionImpl.setValue(ValueExpressionImpl.java:249)
  | 11:14:07,053 ERROR [STDERR] 	at
com.sun.facelets.el.TagValueExpression.setValue(TagValueExpression.java:93)
  | 11:14:07,053 ERROR [STDERR] 	at
javax.faces.component.UIInput.updateModel(UIInput.java:765)
  | 11:14:07,053 ERROR [STDERR] 	at
javax.faces.component.UIInput.processUpdates(UIInput.java:697)
  | 11:14:07,053 ERROR [STDERR] 	at
javax.faces.component.UIComponentBase.processUpdates(UIComponentBase.java:1056)
  | 11:14:07,053 ERROR [STDERR] 	at
javax.faces.component.UIComponentBase.processUpdates(UIComponentBase.java:1056)
  | 11:14:07,053 ERROR [STDERR] 	at
javax.faces.component.UIForm.processUpdates(UIForm.java:255)
  | 11:14:07,053 ERROR [STDERR] 	at
javax.faces.component.UIComponentBase.processUpdates(UIComponentBase.java:1056)
  | 11:14:07,053 ERROR [STDERR] 	at
javax.faces.component.UIViewRoot.processUpdates(UIViewRoot.java:706)
  | 11:14:07,053 ERROR [STDERR] 	at
org.ajax4jsf.component.AjaxViewRoot.access$101(AjaxViewRoot.java:57)
  | 11:14:07,053 ERROR [STDERR] 	at
org.ajax4jsf.component.AjaxViewRoot$2.invokeRoot(AjaxViewRoot.java:291)
  | 11:14:07,053 ERROR [STDERR] 	at
org.ajax4jsf.context.JsfOneOneInvoker.invokeOnRegionOrRoot(JsfOneOneInvoker.java:56)
  | 11:14:07,053 ERROR [STDERR] 	at
org.ajax4jsf.context.AjaxContextImpl.invokeOnRegionOrRoot(AjaxContextImpl.java:173)
  | 11:14:07,053 ERROR [STDERR] 	at
org.ajax4jsf.component.AjaxViewRoot.processUpdates(AjaxViewRoot.java:305)
  | 11:14:07,053 ERROR [STDERR] 	at
com.sun.faces.lifecycle.UpdateModelValuesPhase.execute(UpdateModelValuesPhase.java:101)
  | 11:14:07,053 ERROR [STDERR] 	at
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
  | 11:14:07,053 ERROR [STDERR] 	at
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
  | 11:14:07,053 ERROR [STDERR] 	at
javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  | 11:14:07,053 ERROR [STDERR] 	at
org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:307)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
  | 11:14:07,053 ERROR [STDERR] 	at
org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
  | 11:14:07,053 ERROR [STDERR] 	at
org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
  | 11:14:07,053 ERROR [STDERR] 	at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
  | 11:14:07,053 ERROR [STDERR] 	at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
  | 11:14:07,053 ERROR [STDERR] 	at java.lang.Thread.run(Thread.java:595)
  | 11:14:07,053 ERROR [STDERR] Caused by: java.lang.ClassCastException:
de.prosystemsit.argos3.business.modell.Anwendungsattribute_Allgemein_Uebergreifend
  | 11:14:07,053 ERROR [STDERR] 	at
de.prosystemsit.argos3.business.modell.Anwendung.getAktuelleAttribute(Anwendung.java:147)
  | 11:14:07,053 ERROR [STDERR] 	at
de.prosystemsit.argos3.business.modell.Version.getAktuelleAttribute(Version.java:231)
  | 11:14:07,053 ERROR [STDERR] 	at
de.prosystemsit.argos3.web.VersionBearbeitenImpl.getAttribute(VersionBearbeitenImpl.java:140)
  | 11:14:07,053 ERROR [STDERR] 	at
de.prosystemsit.argos3.web.VersionBearbeitenImpl.getEigentuemer(VersionBearbeitenImpl.java:145)
  | 11:14:07,053 ERROR [STDERR] 	... 132 more
  | 

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[JBoss Seam] - Seam eats exceptions