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
Preface
25
Taking Notes with Monumentum
Bibliography
Index

Future changes to the Java Compiler


There are two notable draft changes to the Java platform, specifically the Java Compiler. These Java Enhancement Proposals are listed as follows and detailed in this section:

  • Policy for retiring javac -source and -target options
  • Pluggable static analyzers

Policy for retiring javac -source and -target options

A formal draft proposal has been submitted to define a policy for retiring -source and -target options. This effort is to help reduce maintenance costs of the compiler. The -source and -target options were provided to ease development efforts, but not formally required by any standards. Starting with the Java 9 platform, these target options are not recognized.

The new policy is called "one plus three back" which means that the current version will be supported as well as the three previous releases. This policy will persist with JDK 10.

Pluggable static analyzers

An ongoing research Java Enhancement Proposal was initiated in the summer of 2013 as an exploratory...