Open Source Java Design Patterns (2nd Edition)

Open Source Java Design Patterns (2nd Edition)

The Most Comprehensive Java Design Pattern Reference Ever Published

Whether you're refactoring legacy systems, designing robust architectures, or mentoring your team, this e-book is your go-to guide to modern, idiomatic Java design patterns.

Built upon the world’s most popular open-source GitHub repository for Java patterns, this second edition delivers an unparalleled catalog of 172 thoroughly documented patterns. From foundational GoF patterns to architecture-level solutions like CQRS, Event Sourcing, and Clean Architecture, each entry includes:

• Concise intent definitions
• Detailed explanations and trade-offs
• Real-world applications
• Idiomatic Java code examples

You'll find patterns for every situation — structural, behavioral, concurrency, integration, testing, microservices, and more — all grounded in practical context and designed for production-grade systems. Best of all, every code example is available online, enabling rapid experimentation and adoption.

Whether you're building greenfield applications or modernizing monoliths, this is the reference you’ll keep reaching for.

Download your copy today for the price of a coffee cup — and give your Java toolkit a serious upgrade.