Mockito for Spring

Working with asynchronous tasks

Java 7 has a feature called Future. Futures let you retrieve the result of an asynchronous operation at a later time. The FutureTask class runs in a separate thread, which allows you to perform non-blocking asynchronous operations. Spring provides an @Async annotation to make it more easier to use. We'll explore Java's Future feature and Spring's @Async declarative approach:

1. Create a project, TimeTravellingWithSpring, and add a package, com.packt.async.
2. We'll exercise a bank's use case, where an automated job will run and settle loan accounts. It will also find all the defaulters who haven't paid the loan EMI for a month and then send an SMS to their number. The job takes time to process thousands of accounts, so ...