Integrating with Async Java APIs

Real JVM systems often talk to Java libraries that use callbacks, thread pools, CompletionStage, or reactive streams.

This section shows practical integration patterns: wrap Java async results at the boundary, convert them into a Clojure-friendly shape (promise, channel, or explicit callback), and keep the rest of your codebase written in plain functions.

The big design idea is the same as synchronous interop: isolate the Java boundary so your core stays easy to test.

In this section

• Java Futures and Callbacks in Clojure: Integrating Asynchronous APIs
  Learn how to integrate Clojure's asynchronous constructs with Java's asynchronous APIs, such as CompletableFuture and callback-based interfaces.
• Asynchronous Interop Techniques: Seamless Integration of Java Futures and Callbacks with Clojure's core.async
  Explore techniques for integrating Java's asynchronous APIs with Clojure's core.async, converting futures and callbacks into channels for efficient concurrency.
• Integrating Clojure with Async Java Libraries: A Case Study
  Explore a comprehensive case study on integrating Clojure with an asynchronous Java library using core.async, focusing on Netty for efficient data flow and event handling.