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https://issues.apache.org/jira/browse/MYFACES-2791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jakob Korherr reopened MYFACES-2791:
------------------------------------

      Assignee: Jakob Korherr

Actually I see the same issue on my machine when using MyFaces. Checking with 
Mojarra, they seem to evaluate the params for ValueExpressions, although I 
could not find it in the spec (javadoc). However it makes sence and thus we 
should do the same.

> render view params not working for EL expressions
> -------------------------------------------------
>
>                 Key: MYFACES-2791
>                 URL: https://issues.apache.org/jira/browse/MYFACES-2791
>             Project: MyFaces Core
>          Issue Type: Bug
>            Reporter: Gurkan Erdogdu
>            Assignee: Jakob Korherr
>
>       <navigation-case>
>               <from-action>#{blog.addBlog}</from-action>
>               <if>#{true}</if>
>               <to-view-id>/view.xhtml</to-view-id>
>               <redirect>
>                       <view-param>
>                               <name>id</name>
>                               <value>#{blog.idm}</value>
>                       </view-param>
>               </redirect>
>       </navigation-case>
> @ManagedBean(name="blog")
> @SessionScoped
> public class Blog {
>       private String content;
>       
>       private static AtomicInteger id = new AtomicInteger(0);
>       
>       private String idm;
>       
>       public static AtomicInteger getId() {
>               return id;
>       }
>       public static void setId(AtomicInteger id) {
>               Blog.id = id;
>       }
>       public String getIdm() {
>               return idm;
>       }
>       public void setIdm(String idm) {
>               this.idm = idm;
>       }
>       public String addBlog(){
>               this.idm = Integer.toString(id.incrementAndGet());
>                 return null;
>       }
>       public String getContent() {
>               
>               return content;
>       }
>       public void setContent(String content) {
>               this.content = content;
>       }
> }
> Produces http://localhost:8080/session_1_blog/view.jsf?id=%23{blog.idm}

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