Handling exceptions thrown from Action.perform in the errorpage?

[sbt]

Hey there!

I have a question for you guys.

When an exception is thrown in my Action derivative I want that exception
to
be handled by the errorpage (<%@ page isErrorPage="true %>). After fooling
around
with the web.xml file adding entries such as:

     <error-page>
          <exception-type>javax.servlet.ServletException</exception-type>
          <location>/errorpage.jsp</location>
     </error-page>

the result is that when I throw a ServletException from the Action.perform
method
I'm directed to my login page(?!). I've tried using the
"mapping.findForward" approach,
as in:

public final ActionForward perform(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException
{
     ActionForward af = null;

     try {
          af = doPerform(...); // throws exception
     } catch(Throwable t) {
          request.setAttribute("javax.servlet.jsp.jspException", new
ServletException(t));
          af = mapping.findForward("error");
     }


    return af;
}

ofcourse, I added:

  <!-- ========== Global Forward Definitions
============================== -->
  <global-forwards>
    <forward   name="error"                path="/errorpage.jsp"/>
  </global-forwards>

to the struts-config.xml file.


That didn't work either. The only approach that seems to work for me is:



public final ActionForward perform(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException
{
     try {
          return doPerform(...); // throws exception
     } catch(Throwable t) {
          request.setAttribute("javax.servlet.jsp.jspException", t);
          getServlet().getServletContext().getRequestDispatcher
("/errorpage.jsp").forward(request, response);
     }
}


Now my questions are:

     Is this last approach safe to use with Struts?
     How do you guys accomplish this? Do you use a different approach
altogether?

TIA,
S. Bro