Wrapper around a javax.servlet.http.HttpServletRequest
utilized when InvokerServlet processes the initial request
for an invoked servlet. Subsequent requests will be mapped directly
to the servlet, because a new servlet mapping will have been created.
author: Craig R. McClanahan version: $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (mar., 24 oct. 2006) $