public List verify() {
List messages = new Vector();
messages.addAll(super.verify());
for (Iterator iterator = _enablementParameters.values().iterator(); iterator.hasNext();) {
YParameter parameter = (YParameter) iterator.next();
messages.addAll(parameter.verify());
}
Collection yawlServices = _yawlServices.values();
for (Iterator iterator = yawlServices.iterator(); iterator.hasNext();) {
YAWLServiceReference yawlService = (YAWLServiceReference) iterator.next();
List verificationResult = yawlService.verify();