Evolving Java With ––enable–preview aka Preview Features
How to use –enable-preview (plus –source or –release during compilation) to experiment with Java’s preview features like switch expressions and text blocks
Definite Guide To Text Blocks In Java 13
Java 13 introduces text blocks: string literals that span multiple lines. Here’s all you need to know about syntax, indentation, escape sequences, formatting, and more.
Immutable Collections In Java – Not Now, Not Ever
The JDK contains immutable collections, but no type `ImmutableCollection`. I explain why and claim that that’s never gonna change.
Jakarta EE, javax, And A Week Of Turmoil
During a week of turmoil, many people have written about Jakarta EE and javax. This post summarizes the community’s opinions and gives you plenty of links to follow up.
Definitive Guide To Java 12
A detailed guide to Java 12: migration, version requirements, new features (switch expressions, teeing collectors, indenting/transforming Strings, and more), and JVM changes (default CDS, Shenandoah, G1).
Teeing Collector in Java 12
The teeing collector, available since Java 12 as Collectors::teeing, forwards its input to two other collectors before merging their results with a function.
Definitive Guide To Switch Expressions In Java 12
Java 12 introduces switch expressions. Together with a new lambda-style arrow syntax, this makes switch more expressive and less error-prone.
Eleven Hidden Gems In Java 11
Think Java 11 is just a maintenance release? Think again! Here are eleven small but shiny additions to classes like String, Path, Files, Collection, Optional, and others that make coding a little more elegant.
Scripting Java 11, Shebang And All
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!
Reactive HTTP/2 Requests And Responses In Java 11
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.