appCtxt = (AppDomainContext) appDomainContexts.get(serviceDomain).get(serviceSubDomain);
if (appCtxt != null) {
// Concurrently perform the application node sanity check.
Callable<Boolean> worker =
new AppNodeSanityCheckCallable(serviceDomain, serviceSubDomain, autoscalerService, appCtxt);
Future<Boolean> appNodeSanityCheck = executor.submit(worker);
jobList.add(appNodeSanityCheck);
} else{
log.error(msg + " and sub domain " + serviceSubDomain + " combination.");