This defines an exception that can be turned into a valid xml service
exception that wms clients will expect. All errors should be wrapped in
this before returning to clients.
author: Gabriel Rold?n version: $Id: WmsException.java 7639 2007-10-22 15:18:58Z aaime $
DOCUMENT ME!
Parameters: e - The message for the . Parameters: preMessage - The message to tack on the front. Parameters: locator - The message for the .