java.util.concurrent: Thread Pools, ForkJoinPool, Synchronizers May 26, 2026 22 min read Master Java's java.util.concurrent: Executors, ForkJoinPool, CountDownLatch, CyclicBarrier, Phaser, and thread pool patterns for high-performance apps. #java #jvm #concurrency #executor #forkjoinpool #countdownlatch #cyclicbarrier #threadpool