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Mastering the Java Virtual Machine

You're reading from   Mastering the Java Virtual Machine An in-depth guide to JVM internals and performance optimization

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Product type Paperback
Published in Feb 2024
Publisher Packt
ISBN-13 9781835467961
Length 234 pages
Edition 1st Edition
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Author (1):
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Otavio Santana Otavio Santana
Author Profile Icon Otavio Santana
Otavio Santana
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Table of Contents (19) Chapters Close

Preface 1. Part 1: Understanding the JVM
2. Chapter 1: Introduction to the Java Virtual Machine FREE CHAPTER 3. Chapter 2: Class File Structure 4. Chapter 3: Understanding Bytecodes 5. Part 2: Memory Management and Execution
6. Chapter 4: Execution Engine 7. Chapter 5: Memory Management 8. Chapter 6: Garbage Collection and Memory Profiling 9. Part 3: Alternative JVMs
10. Chapter 7: GraalVM 11. Chapter 8: The JVM Ecosystem and Alternative JVMs 12. Part 4: Advanced Java Topics
13. Chapter 9: Java Framework Principles 14. Chapter 10: Reflection 15. Chapter 11: Java Annotation Processor 16. Chapter 12: Final Considerations 17. Index 18. Other Books You May Enjoy

Memory management in the JVM

In this enlightening exploration of memory management within the JVM, we’ll delve into the intricacies of memory allocation and utilization, recognizing the pivotal role memory plays in the life cycle of a Java application. Once your Java code has been compiled into bytecode, the journey into memory management begins. As the bytecode executes, it invokes the JVM, the cornerstone of Java’s platform independence, which steps forward to claim the necessary memory from the underlying system. We’ll explore the mechanisms by which the JVM interacts with the system, acquiring the memory needed for efficient program execution.

Within the rich memory landscape of the JVM, crucial components such as the heap and the stack come into play. The heap, a dynamic area where objects are stored, undergoes garbage collection to reclaim memory occupied by objects no longer in use. The stack manages method calls and local variables, providing a structured...

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