One of the most complex and powerful functionalities offered by the Java Concurrency API is the ability to execute concurrent-phased tasks using the Phaser class. This mechanism is useful when we have some concurrent tasks divided into steps. The Phaser class provides the mechanism to synchronize threads at the end of each step so no thread starts its second step until all the threads have finished the first one.
In this recipe, you will learn what information you can obtain about the status of a Phaser class and how to obtain that information.
