[seam-issues] [JBoss JIRA] (SOLDER-153) Make caught exception available as named bean

[Bernard Labno (JIRA)]

    [ https://issues.jboss.org/browse/SOLDER-153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12663117#comment-12663117 ] 

Bernard Labno commented on SOLDER-153:
--------------------------------------

My "/error" is a facelet showing #{handledException}. If I hit "/error" page directly I get

org.jboss.weld.exceptions.IllegalProductException: WELD-000052 Cannot return null from a non-dependent producer method:  [method] @Produces @ConversationScoped @Named public org.jboss.solder.exception.control.ExceptionHandlerDispatch.getExceptionToCatch()
	at org.jboss.weld.bean.AbstractProducerBean.checkReturnValue(AbstractProducerBean.java:217)
	at org.jboss.weld.bean.AbstractProducerBean.create(AbstractProducerBean.java:300)
	at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:107)
	at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:90)
	at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:79)
	at org.jboss.solder.exception.control.ExceptionToCatch$Proxy$_$$_WeldClientProxy.toString(ExceptionToCatch$Proxy$_$$_WeldClientProxy.java)
	at org.apache.el.lang.ELSupport.coerceToString(ELSupport.java:413)
	at org.apache.el.lang.ELSupport.coerceToType(ELSupport.java:443)
	at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:189)
	at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
	at com.sun.faces.facelets.el.ELText$ELTextVariable.writeText(ELText.java:224)
	at com.sun.faces.facelets.el.ELText$ELTextComposite.writeText(ELText.java:148)
	at com.sun.faces.facelets.compiler.TextInstruction.write(TextInstruction.java:85)
	at com.sun.faces.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:82)
	at com.sun.faces.facelets.compiler.UILeaf.encodeAll(UILeaf.java:183)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759)
	at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:401)
	at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
	at com.ocpsoft.pretty.faces.application.PrettyViewHandler.renderView(PrettyViewHandler.java:163)
	at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
	at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
	at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
	at com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:118)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:734)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:541)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:479)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:407)
	at com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:110)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
	at org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:161)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:397)
	at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50)
	at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:151)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
	at java.lang.Thread.run(Thread.java:662)

                
> Make caught exception available as named bean
> ---------------------------------------------
>
>                 Key: SOLDER-153
>                 URL: https://issues.jboss.org/browse/SOLDER-153
>             Project: Solder
>          Issue Type: Feature Request
>          Components: Core
>            Reporter: Dan Allen
>            Assignee: Jason Porter
>            Priority: Minor
>             Fix For: 3.0.0.Beta2
>
>
> As we get into error pages, it's going to be useful to have the caught exception available via a named bean. I think this is just a matter of adding a dependent-scoped producer that reads the value of the current CaughtException from a field in the exception dispatcher.
> In Seam 2, the following two variables were available:
> org.jboss.seam.caughtException - the original exception that was caught
> org.jboss.seam.handledException - the exception cause currently being handled
> I think we could just map org.jboss.seam.caughtException to CaughtException...that way all the info is available, including the exception being handled, the original exception and the unwrapped stack.
>  

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