String jobId = notification.getJobId();
JobSupervisor supervisor = getJobSupervisor(name, jobId);
if (supervisor == null) {
throw new NullPointerException("JobSupervisor name=" + name + ", jobId=" + jobId + " not found");
}
supervisor.onNotification(notification);
}
/**
* This key type is used for assigning {@link com.hazelcast.mapreduce.impl.task.JobSupervisor}s to their
* corresponding job trackers by JobTracker name and the unique jobId.