Book Image

Java 9: Building Robust Modular Applications

By : Dr. Edward Lavieri, Peter Verhas, Jason Lee
Book Image

Java 9: Building Robust Modular Applications

By: Dr. Edward Lavieri, Peter Verhas, Jason Lee

Overview of this book

Java 9 and its new features add to the richness of the language; Java is one of the languages most used by developers to build robust software applications. Java 9 comes with a special emphasis on modularity with its integration with Jigsaw. This course is your one-stop guide to mastering the language. You'll be provided with an overview and explanation of the new features introduced in Java 9 and the importance of the new APIs and enhancements. Some new features of Java 9 are ground-breaking; if you are an experienced programmer, you will be able to make your enterprise applications leaner by learning these new features. You'll be provided with practical guidance in applying your newly acquired knowledge of Java 9 and further information on future developments of the Java platform. This course will improve your productivity, making your applications faster. Next, you'll go on to implement everything you've learned by building 10 cool projects. You will learn to build an email filter that separates spam messages from all your inboxes, a social media aggregator app that will help you efficiently track various feeds, and a microservice for a client/server note application, to name just a few. By the end of this course, you will be well acquainted with Java 9 features and able to build your own applications and projects. This Learning Path contains the best content from the following two recently published Packt products: • Mastering Java 9 • Java 9 Programming Blueprints
Table of Contents (33 chapters)
Title Page - Courses
Packt Upsell - Courses
Taking Notes with Monumentum

Chapter 4. Building Modular Applications with Java 9

In the last chapter, we covered changes in Java 9 with regards to variable handlers and how they related to the AtoMiC Toolkit. We also covered depreciation warnings and why they are now suppressed under specific circumstances. Five enhancements to changes introduced with Java 7 as part of Project Coin were also reviewed. Finally, we explored the improvements to import statement processing.

In this chapter, we will examine the structure of a Java module as specified by Project Jigsaw. We will take a deep-dive into how Project Jigsaw is implemented as part of the Java platform. We will also review key internal changes to the Java platform as they relate to the modular system.

The topics we will cover here are:

  • An introduction to Java modularity
  • Review of the Java platform's module system
  • Modularizing JDK source code
  • Modular runtime images
  • Getting to know the module system
  • Modular Java application packaging
  • The Java linker
  • Encapsulation of internal...