Book Image

Java: High-Performance Apps with Java 9

By : Mayur Ramgir
Book Image

Java: High-Performance Apps with Java 9

By: Mayur Ramgir

Overview of this book

Java 9 which is one of the most popular application development languages. The latest released version Java 9 comes with a host of new features and new APIs with lots of ready to use components to build efficient and scalable applications. Streams, parallel and asynchronous processing, multithreading, JSON support, reactive programming, and microservices comprise the hallmark of modern programming and are now fully integrated into the JDK. This book focuses on providing quick, practical solutions to enhance your application's performance. You will explore the new features, APIs, and various tools added in Java 9 that help to speed up the development process. You will learn about jshell, Ahead-of-Time (AOT) compilation, and the basic threads related topics including sizing and synchronization. You will also explore various strategies for building microservices including container-less, self-contained, and in-container. This book is ideal for developers who would like to build reliable and high-performance applications with Java. This book is embedded with useful assessments that will help you revise the concepts you have learned in this book. This book is repurposed for this specific learning experience from material from Packt's Java 9 High Performance by Mayur Ramgir and Nick Samoylov
Table of Contents (9 chapters)
Java: High-Performance Apps with Java 9
Credits
Preface

Chapter 5. Making Use of New APIs to Improve Your Code

In the previous lessons, we talked about possible ways to improve the performance of your Java application--from using the new command and monitoring tools to adding multithreading and introducing reactive programming and even to radically re-architecting your current solution into an unruly and flexible bunch of small independent deployment units and microservices. Without knowing your particular situation, there is no way for us to guess which of the provided recommendations can be helpful to you. That's why, in this lesson, we will describe a few recent additions to the JDK that can be helpful to you too. As we mentioned in the previous lesson, the gain in performance and overall code improvement does not always require us to radically redesign it. Small incremental changes can sometimes bring more significant improvements than we could have expected.

To bring back our analogy of a pyramid building, instead of trying to change the...