How does CompletableFuture impact performance or memory usage?

CompletableFuture is a powerful abstraction in Java that provides a way to handle asynchronous programming. Its impact on performance and memory usage can be significant, depending on how it is utilized.

When used effectively, CompletableFuture can improve the responsiveness of applications by allowing non-blocking operations, which can lead to better resource utilization and throughput. However, improper use can lead to increased memory consumption due to retained references and the complexity of managing multiple future tasks, which can overwhelm the garbage collector.


CompletableFuture Java asynchronous programming performance memory usage non-blocking operations