CompletableFuture

CompletableFuture — A Java abstraction for composing asynchronous computations, completion stages, failures, and dependent actions.

Concurrency Context

Its value is composition rather than merely running code on another thread. Production use requires deliberate executor selection, timeout policy, exception propagation, cancellation semantics, and awareness that blocking join/get calls can erase the benefits of asynchronous composition.

Related Concurrency Concepts

• ExecutorService
• Future
• asynchronous programming
• structured concurrency