Topic Preview • Enroll to Read Full Lesson
6.2 Timeouts, Exception Handling & allOf Fan-Out
Topic Summary
Execute parallel API calls simultaneously using CompletableFuture.allOf() and enforce strict timeouts with orTimeout().
What You Will Learn
• Fan-out multiple independent asynchronous calls in parallel.
• Join multiple futures cleanly using `CompletableFuture.allOf()`.
• Guard against hung downstream microservices with `.orTimeout()` (Java 9+).
Included in Java Advanced & Production Engineering • Lifetime access for ₹149