Enable task annotation

bean_async.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:task="http://www.springframework.org/schema/task"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd"
       default-lazy-init="true">
    
    <!--  async support -->
    <task:annotation-driven executor="myExecutorService" scheduler="mySchedulerService" />
    <task:executor id="myExecutorService" pool-size="5-10" queue-capacity="10" />
    <task:scheduler id="mySchedulerService" pool-size="10" />
</beans>