not sure if this is what you want but this one should work:
global forward is defined as, fot example:
<forward name="authorizationError" path=".authorizationError"
redirect="true"/>
the ".authorizationError" is defined as a Tile:
<definition name=".authorizationError" extends=".baseDef">
<put name="menu" value="/WEB-INF/tiles/menu/menu.jsp"/>
<put name="content" value="/WEB-INF/pages/authorizationError.jsp"/>
</definition>
in your action class, you can do this:
return mapping.findForward("authorizationError");