The Executor framework provides a mechanism that allows you to separate task implementation from the creation and management of threads that execute the tasks. Java 9 includes an extension of the Executor framework for a specific kind of problem that will improve the performance of other solutions (using Thread objects directly or the Executor framework). It's the fork/join framework.

This framework is designed to solve problems that can be broken down into smaller tasks using the fork() and join() operations. The main class that implements this behavior is ForkJoinPool.

In this recipe, you will learn what information you can obtain about a ForkJoinPool class and how to obtain it.