Learn all the module system basics in this tutorial: how to declare modules with module-info.java, compile, package, and launch them and what role the module path and readability graph play.
Java 9 introduces unified logging, a central mechanism configurable with -Xlog to observe class loading, threading, the garbage collector, the module system, etc.
Get your code running on the Java 9 Module System with the command line options –add-exports, –add-opens, –add-modules, –add-reads, and –patch-module.
Time to put your Java 9 knowledge into practice and plan your applications migration. Here’s how to get an overview of what needs to be done.
Migrating to Java 9 is no walk in the park, but it’s not intractable either. If you know how to fix these seven most common problems, you’ll be able to power through and make your project Java 9 compatible.
JDeps is a dependency analysis tool for Java bytecode, i.e. class files and JARs. This primer teaches you how to use filters, aggregate results, and create diagrams.
Thorough introduction to parameterized tests in JUnit 5: How to create them, how to name them, where to get the arguments from, and how to customize that.
You can tell that Java 9 draws near because the number of posts and talks about it skyrocketed in the recent months. I want to recommend existing talks and articles […]
The module system allows optional dependencies with the ‘requires static’ clause. Module required this way are accessible at compile time but can be absent at run time.
My first stab at exception handling in Java streams. Explores how to repackage checked exceptions so that they can be thrown without the compiler complaining about it.