Parallelism and concurrency in Java
In this article, I will explain parallelism and concurrency in Java, covering its evolution from basic threads to modern concurrency patterns. We’ll explore different approaches to concurrent programming in Java, starting with traditional thread-based concurrency and progressing through more advanced patterns. Java’s concurrency model has evolved significantly over the years. The latest addition is Structured Concurrency, introduced as a preview feature in Java 19 and currently in its fifth preview in Java 25 (LTS). This powerful new model, specified in JEP 505, addresses many of the challenges of traditional thread management. We’ll examine Structured Concurrency in detail in the final section of this article. ...