Spring Asynchronous Execution using @Async

In this tutorial we will discuss about the asynchronous execution support in Spring using the @Async annotation. There are cases in which @Async is necessary to execute piece of code asynchronous. An example would be while sending a (JMS) message from one system to another system. The advantage is that the user does not have to wait for the response while the message is being send.
@Async annotation on a method of a bean will execute in a separate thread i.e. the caller does not need to wait for the completion of the called method.

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