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Posted to dev@myfaces.apache.org by "Shahzeb Khan (Commented) (JIRA)" <de...@myfaces.apache.org> on 2012/02/15 01:09:59 UTC

[jira] [Commented] (MYFACES-3464) Using Myfaces 2.1.6 does not allow to using a user provided EL (e.g. jBoss-el) other than what is provided by container when used with Webesphere 7 .

    [ https://issues.apache.org/jira/browse/MYFACES-3464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13208146#comment-13208146 ] 

Shahzeb Khan commented on MYFACES-3464:
---------------------------------------

Work around is quite straightforward just simply use the library user specifies in web.xml and only do this check if there is no EL specified there. Otherwise with Websphere Parent First policy (which for better or worse is the recommend IBM way) classloaders will always load IBM provided libs first and myfaces will not use ones provided by users. Just removing this check works fine for us but I am not comfortable in removing it since I do not know why it is there. Reference implementation of JSF2 does not have any thing similar and works fine.Surely this needs to be fixed/altered in myfaces to make way these kind of configurations for projects using Websphere.
                
> Using Myfaces 2.1.6 does not allow to using a user provided EL (e.g. jBoss-el) other than what is provided by container when used with Webesphere 7 .
> -----------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MYFACES-3464
>                 URL: https://issues.apache.org/jira/browse/MYFACES-3464
>             Project: MyFaces Core
>          Issue Type: Bug
>    Affects Versions: 2.1.6
>         Environment: Websphere 7.0.0.17  
> JSF 2
>            Reporter: Shahzeb Khan
>            Assignee: Leonardo Uribe
>
> There seems to be no way to use an EL other than what is provided by Websphere (have not checked with any other server).
> We are using JSF 2 via isolated shared library with Websphere  version 7.0.0.17. Trying to use jBoss-el by adding it to the isolated shared libraries or to lib directory and setting 
>  <context-param>
>         <param-name>org.apache.myfaces.EXPRESSION_FACTORY</param-name>
>         <param-value>org.jboss.el.ExpressionFactoryImpl</param-value>
>     </context-param>
> in web.xml does not make myfaces pickup the supplied EL.
> In the logs this line is written [13/02/12 15:19:06:113 EST] 00000029 ExternalSpeci I   MyFaces Unified EL support disabled.
> tracked it down to this method org.apache.myfaces.util.ExternalSpecifications#isUnifiedELAvailable() . The try block throws a error as can not find class ( and method but exception is thrown at the first check i.e class) and catch block sets the return value to false. This stopping it to use an externally supplied EL . 
> I have also asked this question on SO
> http://stackoverflow.com/questions/9091354/how-can-i-update-websphere-7-to-use-el2-2

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