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https://issues.apache.org/jira/browse/MYFACES-2968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12930632#action_12930632
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Martin Kočí commented on MYFACES-2968:
--------------------------------------

Are you sure that Application action is related to 
ApplicationImpl.createMethodBinding? I don't see any usage of 
createMethodBinding in myfaces codebase.  Application action is implemented as 
org.apache.myfaces.application.ActionListenerImpl. 


I think createMethodBinding and createValueBinding are methods from jsf 1.0 
world and from javax.faces.el - they are  are simple predecessor of 
ExpressionFactory.createXYZ from unified EL.

But, if your statement is true, then the difference must be in underlying EL 
implementation - I'll investigate it more.


> ApplicationImpl.createMethodBinding should create expression with signature: 
> void method(params)
> ------------------------------------------------------------------------------------------------
>
>                 Key: MYFACES-2968
>                 URL: https://issues.apache.org/jira/browse/MYFACES-2968
>             Project: MyFaces Core
>          Issue Type: Bug
>            Reporter: Martin Kočí
>         Attachments: MYFACES-2968.patch
>
>
> This is probably not specified but mojarra does it: 
> Application.createMethodBinding creates method expression with void return 
> type. That makes sence because original purpose of MethodBinding is a 
> reference to faces listeners and they are without return values mostly.
> o.a.m.ApplicationImpl creates value expression to method with Object return 
> type.

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