When we’re talking about Java 9, the most important topic is Project Jigsaw (
http://openjdk.java.net/projects/jigsaw/
) or the Java Platform Module System (JPMS), which introduces the module system into the Java platform. Project Jigsaw was supposed to be added in Java 8, but the changes were too big, so it was delayed to release with Java 9. Project Jigsaw brings significant changes to the Java platform, not only to the JDK itself, but also to Java applications running on it.
The Java SE platform and JDK are organized in modules in Java 9 so they can be customized to scale down to run on small devices. Before ...
