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


In this chapter we took an in-depth review of garbage collection as a critical pre-Java 9 platform component. Our review included object life cycle, garbage collection algorithms, garbage collection options, and methods related to garbage collection. We looked at upgrades to garbage collection in Java 8 and looked at a case study to help our understanding of modern garbage collection. We then turned our focus to the changes to garbage collection with the new Java 9 platform. Our exploration of garbage collection in Java 9 included looks at default garbage collection, depreciated garbage collection combinations, and unified garbage collection logging. We concluded our exploration of garbage collection by looking at a few garbage collection issues that persist, even after Java 9.

In the next chapter we will look at how to write performance tests using the Java Microbenchmark Harness (JMH), a Java harness library for writing benchmarks for the JVM.