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https://issues.apache.org/jira/browse/MYFACES-2968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Weßendorf updated MYFACES-2968:
----------------------------------------

    Resolution: Invalid
        Status: Resolved  (was: Patch Available)

That's a bug in Mojarra - at least according to the spec:

section 7.3 (Application Actions)

Application action is not a formal JSF API; instead any method that
meets the following requirements may be used as an
Action by virtue of evaluating a method binding expression:
■ The method must be public.
■ The method must take no parameters.
■ The method must return Object.
The action method will be called by.......





> 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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