Learn how to use synchronous and asynchronous callbacks in Java—including callbacks with lambda expressions, CompletableFuture, and more.

A preview feature in JDK 22 combines the strengths of virtual threads and parallel streams to improve optimization and performance. Here's how it works.

So I inherited this bit of Java code and it has what I will call a Watchdog Timer.It is set for like 10 minutes and if nothing good happens in 10 minutes it runs some cleanup code.Now when ever ...