From Java 11 on, you can execute a single source file without compiling it first. Beyond experimentation, you can write scripts this way. Even the shebang is supported!
With Java 11’s new reactive HTTP/2 API, request and response bodies can be handled with reactive streams, which gives you full control over the bytes going over the wire: you can throttle, stream, and even cancel early.
Java 11 ships with a new, fluent HTTP/2 API. This tutorial explains the basic building blocks and how to send requests synchronously and asynchronously.
Migrating from Java 8 to Java 11? Then this post has got you covered. It discusses licensing, long-term support, update preparations, version requirements, common migration challenges, and more.
With ‘var’ it is possible to ad-hoc combine traits into an instance that matches your exact requirements. This allows for pretty cool experimentation, but unfortunately has some serious downsides.
Local-variable type inference with `var` makes it easier to work with anonymous classes, for example to create ad-hoc fields and methods. But does that mean you should use them more often? I think not.
With ‘var’ it is much easier to work with intersection types in Java 10 and later. You still need non-trivial tricks with generics to declare intersection types, but thanks to ‘var’ it is now easy to create local variables of such types.
So, Java 9 came out last year… What now? Where to get started? If that’s what you’re asking yourself, then you’ve come to the right place! This Java 9 tutorial is a condensation of all you need to know to find your way around the new release, to get you ready to explore it in more depth.
Java 10 introduces ‘var’ which lets the compiler infer local variable types. Here’s how it works, why it exists, and how it impacts readability.
Using annotations from JSR-305 (@Nonnull, @Nullable, etc.) with others from the javax.annotation package (@Generated, @PostConstruct) on Java 9 causes a split package. Here’s the fix.