code: public static void setForwardedFormBean( ServletRequest request, ActionForm form )
      {
          if ( form == null )
          {
              request.removeAttribute( FORWARDED_FORMBEAN_ATTR );
          }
          else
          {
              request.setAttribute( FORWARDED_FORMBEAN_ATTR, form );
          }
      }
docs: Set the forwarded form.  This overrides the auto-generated form created by processActionForm
  and populated by processPopulate (in PageFlowRequestProcessor).