How to pass params to JSTL?

Hello Amigos!

I got an class extending from Struts Action class.

When an error occurs I try to show an jsp with an error message with JSTL:

<li><c:out value="${errorMess}"/></li>

In the Action I have tried to set errorMess like:

pRequest.setAttribute("errorMess", "ERROR MESSAGE");

pRequest.getSession().setAttribute("errorMess", "ERROR MESSAGE");

But when the jsp shows the li-tag is empty, like <li></li>.

It looks like I do not set the errorMess in the correct way?

If you see what I miss please let me know!

Best regards
Fredrik