Question

The Spring org.springframework.scheduling.TaskScheduler is different from the JDK java.util.concurrent.ScheduledExecutorService in the way that it does not allow scheduling a java.util.concurrent.Callable with a fixed delay (it can just schedule java.lang.Runnables).

Is there a Spring-based alternative to the ScheduledExecutorService available (that is automatically shut down on context destruction) that supports scheduling Callables?

Answer 1

If the only thing you need is shutdown, use destroy-method:

<bean id="threadPool" class="java.util.concurrent.Executors" 
      factory-method="newFixedThreadPool"
      destroy-method="shutdown">
    <constructor-arg type="int" value="6"/>
</bean>

Works just fine for us.

PS. You may need to use factory-method="newScheduledThreadPool" instead.