[jira] [Commented] (MYFACES-4127) Unexpected exception thrown when FlowMap is injected on a RequestScoped bean

["Eduardo Breijo (JIRA)" <de...@myfaces.apache.org>]

    [ https://issues.apache.org/jira/browse/MYFACES-4127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16137267#comment-16137267 ] 

Eduardo Breijo commented on MYFACES-4127:
-----------------------------------------

I can provide a sample application for this issue. I think the issue here is that we are defining in the @FlowMap to be @ApplicationScoped (hence the wrong exception) when it should be @FlowScoped in the ApplicationScopeObjectProducer class. I tried to change the scope to be FlowScoped but I get this error message "The annotation @FlowScoped is disallowed for this location". I remember when I was working with MYFACES-4126, at first I tried to implement that in a different way, by implementing Bean<T>, which lets you define a scope for the object, and I think that worked as expected. It would be nice if there is a way to change the scope of that FlowMap with what we currently have. 

> Unexpected exception thrown when FlowMap is injected on a RequestScoped bean
> ----------------------------------------------------------------------------
>
>                 Key: MYFACES-4127
>                 URL: https://issues.apache.org/jira/browse/MYFACES-4127
>             Project: MyFaces Core
>          Issue Type: Bug
>    Affects Versions: 2.3.0-beta
>            Reporter: Eduardo Breijo
>            Priority: Minor
>         Attachments: ConfigItems.java
>
>
> When @FlowMap is injected on a RequestScoped bean, and you try to use that object (which should be null since we are not inside of a flow), an unexpected exception is thrown. This was noted after JIRA issue: https://issues.apache.org/jira/browse/MYFACES-4126
> Caused by: org.jboss.weld.exceptions.IllegalProductException: WELD-000052: Cannot return null from a non-dependent producer method: Producer for Producer Method [Map<Object, Object>] with qualifiers [@FlowMap @Any] declared as [[UnbackedAnnotatedMethod] @Produces @FlowMap @ApplicationScoped public org.apache.myfaces.cdi.faces.ApplicationScopeObjectProducer.getFlowMap()] declared on Managed Bean [class org.apache.myfaces.cdi.faces.ApplicationScopeObjectProducer] with qualifiers [@Any @Default]
> 	at org.apache.myfaces.cdi.faces.ApplicationScopeObjectProducer.getFlowMap(ApplicationScopeObjectProducer.java:73)
>   StackTrace:
> 	at org.jboss.weld.bean.AbstractProducerBean.checkReturnValue(AbstractProducerBean.java:136)
> 	at [internal classes]
> 	at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:96)
> 	at org.jboss.weld.bean.ContextualInstanceStrategy$DefaultContextualInstanceStrategy.get(ContextualInstanceStrategy.java:100)
> 	at [internal classes]
> 	at java.lang.String.valueOf(String.java:2994)
> 	at java.lang.StringBuilder.append(StringBuilder.java:131)
> 	at com.ibm.ws.jsf23.fat.beans.ELImplicitObjectBean.execute(ELImplicitObjectBean.java:163)
> On Mojarra 2.3, we get a different exception which looks more appropriate.
> org.jboss.weld.contexts.ContextNotActiveException: WELD-001303: No active contexts for scope type javax.faces.flow.FlowScoped
> 	org.jboss.weld.manager.BeanManagerImpl.getContext(BeanManagerImpl.java:623)
> 	org.jboss.weld.bean.ContextualInstanceStrategy$DefaultContextualInstanceStrategy.getIfExists(ContextualInstanceStrategy.java:89)
> 	org.jboss.weld.bean.ContextualInstance.getIfExists(ContextualInstance.java:63)
> 	org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:87)
> 	org.jboss.weld.bean.proxy.ProxyMethodHandler.getInstance(ProxyMethodHandler.java:125)
> 	org.jboss.weld.util.Map$1302817811$Proxy$_$$_WeldClientProxy.toString(Unknown Source)
> 	java.lang.String.valueOf(String.java:2994)
> 	java.lang.StringBuilder.append(StringBuilder.java:131)
> 	com.ibm.ws.jsf23.fat.beans.ELImplicitObjectBean.execute(ELImplicitObjectBean.java:163)



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