@PostConstruct
	public void init() {
		scheduledTaskService.addFixedDelayedScheduledTaskInTransactionContext(this, 2000);
	}
Agent periodic check service.
<p/>
This class runs the plugins implementing
{@link OnPeriodicWorkingAgentCheckRunnable}.
<p/>
It's separated from {@link AgentService} to get rid of cyclic
injection.

@since 3.1.2
ngrinder-controller/src/main/java/org/ngrinder/agent/service/PeriodicWorkingAgentCheckService.java