Mastering the Java Virtual Machine

Delve into JVM inner workings and explore internals, memory management, and performance optimization

Key Features

• Uncover the intricacies of JVM, from class loading to garbage collection, and more
• Master JVM memory management for efficient resource use and reduced overhead
• Apply JVM knowledge through case studies, reinforcing your understanding of internals

Book Description

Mastering the Java Virtual Machine is a comprehensive guide that will take you into the heart of Java programming, guiding you through the intricate workings of the Java Virtual Machine (JVM) and equipping you with essential skills to become a proficient Java developer.

You’ll start by understanding the JVM, exploring its architecture and how it executes Java code. Through detailed explanations and real-world examples, you’ll gain a deep understanding of JVM internals, enabling you to write efficient and optimized Java applications.

As you progress, you’ll delve into memory management and execution, unraveling the complexities of heap and stack management, garbage collection, and memory profiling. You’ll learn how memory is allocated and reclaimed in the JVM, as well as how to optimize memory usage and identify performance bottlenecks in your applications. With this knowledge, you’ll be able to create Java programs that are not only robust but also highly performant.

By the end of this book, you’ll have the skills needed to excel in Java programming, writing efficient, maintainable code.

What you will learn

• Understand JVM architecture and bytecode execution
• Explore memory management and optimize memory usage
• Compare and evaluate alternative JVMs like GraalVM
• Master reflection for dynamic behavior in Java applications
• Utilize Java annotation processors for code generation
• Get to grips with reactive programming principles for scalable applications

Who this book is for

This book is for Java developers seeking to deepen their expertise in the Java Virtual Machine (JVM) and optimize Java applications for peak performance. It caters to both intermediate and seasoned professionals who want to explore specific aspects such as JVM internals, memory management, threading, security, and performance tuning.

Table of Contents

1. Introduction to the Java Virtual Machine
2. Class File Structure
3. Understanding Bytecodes
4. Memory Management
5. Execution Engine
6. Class Loading and Dynamic Class Loading
7. Garbage Collection and Memory Profiling
8. GraalVM
9. JVM Ecosystem and Alternative JVMs
10. Java Framework Principles
11. Reflection
12. Java Annotation Processor

About the Author

Otavio is a passionate architect and software engineer focused on cloud and Java technologies. He has deep expertise in polyglot persistence and high-performance applications in finance, social media, and e-commerce. As a global speaker, he has presented at the most significant international conferences, such as JavaOne, TDC, and Devoxx. He volunteers and helps organize several Java User Groups and meetups around the globe. Otavio is recognized for his Open Source contributions and has received many awards, including all JCP Awards categories and the Duke’s Choice Award, to name a few. Otavio is also a distinguished member of the Java Champions and Oracle ACE programs. Otavio loves history, economy, traveling, programming, and real-world languages. He speaks Portuguese, English, Spanish, Italian, and French and is fluent in dad jokes.