Represents the last Variable resolver in the chain - is added to be able to
through an Evaluation Exception, even if any third-party Variable Resolver is
added to the mix.
author: Martin Marinschek (latest modification by $Author: dennisbyrne $) version: $Revision: 375880 $ $Date: 2006-02-08 08:27:18 +0100 (Mi, 08 Feb 2006) $