Job shutdown exist resource is not reclaimed.

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version: 3.0.4

Single Instance shutdown

JobScheduler.java

public void shutdown() {
      setUpFacade.tearDown();
      schedulerFacade.shutdownInstance();
      jobExecutor.shutdown();
 }

Other instances response listener shutdown

InstanceShutdownStatusJobListener.java

public void onChange(final DataChangedEvent event) {
     //..
     schedulerFacade.shutdownInstance();
     //..
}

There is a problem other instances response listener shutdown ,Not executed setUpFacade.tearDown() and jobExecutor.shutdown()

setUpFacade.tearDown()

public void tearDown() {
  regCenter.removeConnStateListener("/" + this.jobName);
  regCenter.removeDataListeners("/" + this.jobName);
  if (reconcileService.isRunning()) {
    reconcileService.stopAsync();
  }
}

jobExecutor.shutdown()

public void shutdown() {
  executorContext.shutdown();
}

[linghengqian]

Do you plan to submit PR?