[seam-issues] [JBoss JIRA] Created: (SEAMFACES-42) IllegalProductException: WELD-000052 Cannot return null from a non-dependent producer method

[Brian Leathem (JIRA)]

IllegalProductException: WELD-000052 Cannot return null from a non-dependent producer method
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                 Key: SEAMFACES-42
                 URL: https://jira.jboss.org/browse/SEAMFACES-42
             Project: Seam Faces
          Issue Type: Bug
          Components: Messages & i18n
    Affects Versions: 3.0.0.Alpha3
         Environment: Glassfish 3.0.1, Weld 1.0.1-FINAL, Seam3 Faces 1.0-ALPHA3
            Reporter: Brian Leathem


I created a Custom Exception handler to trap "NonexistentConversationException" exceptions as per Ed Burns howto: 
http://weblogs.java.net/blog/edburns/archive/2009/09/03/dealing-gracefully-viewexpiredexception-jsf2

The exception handler attempts to redirect the faces navigation:
nav.handleNavigation(fc, null, "/workrequest/index.xhtml");

This results in the stack trace:
org.jboss.weld.exceptions.IllegalProductException: WELD-000052 Cannot return null from a non-dependent producer method:  org.jboss.weld.bean.ProducerMethod$1 at 32ac538c
        at org.jboss.weld.bean.AbstractProducerBean.checkReturnValue(AbstractProducerBean.java:255)
        at org.jboss.weld.bean.AbstractProducerBean.create(AbstractProducerBean.java:361)
        at org.jboss.weld.context.AbstractMapContext.get(AbstractMapContext.java:112)
        at org.jboss.weld.bean.proxy.ClientProxyMethodHandler.getProxiedInstance(ClientProxyMethodHandler.java:143)
        at org.jboss.weld.bean.proxy.ClientProxyMethodHandler.invoke(ClientProxyMethodHandler.java:100)
        at org.jboss.weld.util.CleanableMethodHandler.invoke(CleanableMethodHandler.java:43)
        at org.jboss.seam.faces.context.FlashContext_$$_javassist_785.put(FlashContext_$$_javassist_785.java)
        at org.jboss.seam.faces.status.MessagesAdapter.flushBeforeNavigate(MessagesAdapter.java:63)
        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:597)
        at org.jboss.weld.util.reflection.SecureReflections$13.work(SecureReflections.java:304)
        at org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:54)
        at org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInvocation(SecureReflectionAccess.java:163)
        at org.jboss.weld.util.reflection.SecureReflections.invoke(SecureReflections.java:298)
        at org.jboss.weld.introspector.jlr.WeldMethodImpl.invokeOnInstance(WeldMethodImpl.java:200)
        at org.jboss.weld.introspector.ForwardingWeldMethod.invokeOnInstance(ForwardingWeldMethod.java:59)
        at org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:194)
        at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:241)
        at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:216)
        at org.jboss.weld.manager.BeanManagerImpl.notifyObservers(BeanManagerImpl.java:654)
        at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:647)
        at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:641)
        at org.jboss.seam.faces.event.PreNavigateEventProducer.handleNavigation(PreNavigateEventProducer.java:65)
        at ca.triumf.mis.qms.workrequest.jsf.exception.NonexistentConversationExceptionHandler.handle(NonexistentConversationExceptionHandler.java:48)
        at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:119)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:110)
        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312)
        at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
        at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
        at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
        at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
        at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
        at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
        at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
        at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
        at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
        at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
        at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
        at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
        at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
        at java.lang.Thread.run(Thread.java:619)

It seems as if the seam faces module is trying to put messages in the flash context, and this is causing a weld exception to be thrown.  I hope I'm reading this as a Seam3 Faces error correctly :P

Thanks as always,
Brian

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