Using ExpressionEvaluatorManager in a Struts Action execute()

[f.]

Hi,

The idea is an hyperlink on HTML Page calling a Struts Action
and with an URI ending with like 
myAction.do?elexpression="sessionScope['mylist'][param.row]"

So I need the ELanguage power in my Action.execute( ) method.
I tryed to get a PageContext( ) from JSPFactory.DefaultFactory( ) (using 
current request, response,etc )
but now my container (Jetty) send JSP source instead of JSP processing 
result.

--------------------------
public class DetailHandlerAction extends Action {
   public ActionForward execute(
       ActionMapping mapping,
       ActionForm form,
       HttpServletRequest request,
       HttpServletResponse response)
       throws Exception {
   PageContext pc = 
JspFactory.getDefaultFactory().getPageContext(this.getServlet(),request, 
response, null, true, 4096 , false );
   evaluatedDetailRef = ExpressionEvaluatorManager.evaluate(null, 
detailRef, Object.class, pc);
   javax.servlet.jsp.JspFactory.getDefaultFactory().releasePageContext(pc);
----------------------------

Any idea ?
Thanks for your help.
Denis.


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