Assert.that(nv != null, "AWNodeChangeException caught but no valid " +
"AWNodeValidator declared in the nodeValidationException.");
AWResponseGenerating handlerResults =
nv.handleNodeValidationException(requestContext);
nv.terminateCurrentSession(requestContext);
response = handlerResults.generateResponse();
}
catch (AWSessionValidationException exception) {
// see comment in handler of AWSessionRestorationException
// redirec the user to the main application url.