Bridging Two Worlds
Mastering the Java Native Interface for High-Performance Applications
Most developers assume JNI is either too complex to bother with or a simple matter of calling native functions from Java. Both assumptions lead to fragile code, memory leaks, and performance problems that are difficult to diagnose. The reality is that JNI sits at a critical intersection where two fundamentally different programming paradigms meet, and success requires understanding both sides of that boundary. This book cuts through the confusion with a practical, systematic approach to JNI development. You'll learn how to architect JNI solutions that are maintainable and performant, master the intricacies of memory management across language boundaries, and develop the debugging skills needed when problems span both Java and native code. Whether you're integrating legacy C libraries, optimizing performance-critical sections, or accessing platform-specific features, you'll gain the knowledge to make informed decisions about when and how to use JNI effectively. Through clear explanations, real-world examples, and battle-tested patterns, you'll develop the confidence to build robust native integrations that enhance rather than compromise your Java applications.
Est. Length
222 pages (12 chapters)
Language
English
Publication date
Oct 22, 2025
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