https://DevOpsCloud.io -- Cloud Monk Losang Jinpa, Ph.D., MCSE/MCT, GitOps DevOps Engineer

Java CountedCompleter is a class in Java's java.util.concurrent package that implements a task that can be completed by a specified number of threads. It extends the Java ForkJoinTask class and allows developers to create tasks that require multiple sub-tasks to complete before finalizing. Introduced in Java 2011 with Java 7, CountedCompleter is useful for parallel computing, where tasks are divided into smaller units and must all be completed before the main task finishes.

https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CountedCompleter.html