Happy #Java20 release day, everybody! Get the freshest JDK right here: jdk.java.net/20/ Let's have a quick look at how the preview features progressed this release (after we looked over all the small and not-so-small additions to 20 last week 👇🏾). 🧵

Nicolai Parlog 🇺🇦🕊️ @nipafx

3 years ago

Happy #Java20 release day, everybody! Get the freshest JDK right here: jdk.java.net/20/ Let's have a quick look at how the preview features progressed this release (after we looked over all the small and not-so-small additions to 20 last week 👇🏾). 🧵

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VIRTUAL THREADS No material change in the 2nd preview, but some small additions (e.g. to `Thread` and `Future`) that were part of the preview in Java 19, were already finalized because they're useful independently of virtual threads. openjdk.org/jeps/436

SCOPED VALUES This newly incubating API tackles some of the use cases of Thread Locals but work much better with virtual threads: * immutable (no scaling cost with number of threads) * values are removed once out of scope (no leaking) openjdk.org/jeps/429

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@nipafx Finally, the ExecutorService extends the AutoCloseable.