Develop modular applications using the Java Platform Module System, the single most anticipated feature in Java 9. You will improve the maintainability and performance of your Java applications by deploying only the modules that are needed and encapsulating their implementation details. Until now, Java has been monolithic. Using any one part of Java has meant incorporating the entirety of the runtime environment, an approach ill-suited to the increasing number of IoT devices such as fitness monitors, kitchen appliances, toys, and games. This book shows a new way to make Java scale from the smallest of footprints in the smallest of devices through desktop PCs and up to server platforms. With Java 9 Modularity Revealed, you will learn to make your projects more reliable and scalable than ever using the most important feature in Java 9, the Java Platform Module System.