as.setToleranceRange(0);
spec.setSetting(as);
ManagedObjectReference[] existingAlarms = alarmManager.getAlarm(rootFolder._getRef());
Alarm existing = null;
try {
if (existingAlarms != null) {
for (ManagedObjectReference m : existingAlarms) {
Alarm a = MoUtil.getManagedObject(m);
if (a.getInfo().getName().equals(alarmName)) {
existing = a;
break;
}
}
}