Books

Get onboard this journey into the land of streams. This is a complete hands-on book about Apache Flink, that follows real-life use cases and will help you learn how to create scalable end-to-end stream processing pipelines.

By the author of "Thinking in Java," covering version 8 of the Java programming language (with updates to Java 17). Intended for “dedicated beginners,” it doesn’t assume you know anything about programming and takes you through the material step-by-step. However, I assume you are able to figure things out. It’s not a “dummies” or “idiot’s” guide.

Spring Boot 4 changes everything you thought you knew about building Java applications. Virtual threads make blocking code fast again. Native images deliver instant startup. First-class API versioning finally solves the "how do we evolve our APIs?" problem. But here's the catch: upgrading isn't just a dependency bump. Jakarta EE 11, new auto-configuration patterns, GraalVM constraints, and reactive vs. virtual threads— getting it right requires understanding the *why* behind every change. This book is your production-ready guide to Spring Boot 4 and Spring Framework 7. Written for intermediate developers who need more than "hello world" tutorials. Learn how to: • Build cloud-native microservices that scale • Migrate from Boot 3 safely and incrementally • Design APIs with built-in versioning and resilience • Choose between reactive, virtual threads, and native images • Secure distributed systems with JWT and OAuth2 • Implement observability that actually helps you debug production issues 300+ pages. 27 chapters. Real code. Real architecture. Real problems solved.

Build a complete, production-grade microservices platform with Spring Boot 4 and Java 21, one chapter at a time.

Ready to learn Java without getting lost in theory? Start with your first program, then work your way up to virtual threads, testing, observability and container deployment. With Java 26 and complete code that actually compiles, you’ll build the skills to create software fit for production.

Build Intelligent Java Applications with RAG, MCP and Al Agents, based on Spring AI 2.0.0

A good software architecture should keep the cost of development low over the complete lifetime of an application. This book discusses how the Hexagonal Architecture style tries to fulfill this goal and translates the concepts into actual code to provide inspiration for software developers.

A master class on the fundamentals and principles of functional programming. It contains 20 programming challenges with detailed solutions and 44 quizzes with answers and explanations. Moreover, 84 diagrams graphically illustrate how concepts and techniques work. Two real-world use cases show how to apply functional programming in practice.

Java 21 and Java 25 LTS, feature by feature. Records, virtual threads, pattern matching, structured concurrency, FFM, JFR, gatherers. One runnable Maven module per chapter. JDK-only, no framework noise. For engineers who shipped Java 11 and now have to update.

Most developers treat Hibernate as a black box that turns objects into rows. This book opens the box, shows you exactly what happens inside, and teaches you how to make it work for you at scale.

In today’s fast-paced development world, writing reliable code is crucial. But with countless testing tools available, it’s easy to feel overwhelmed. That’s where the Java Testing Toolbox comes in - a practical, hands-on guide to the 30 most important testing tools and libraries every Java developer should know. Whether you’re new to testing or looking to expand your testing toolkit, this book provides right-sized introductions to each tool, giving you exactly what you need without the fluff.

Learn Java Virtual Threads

Effective Code Review Tips and Tricks

Discover how Java developers can contribute to a sustainable future. Written by Java Champions and community experts, this collaborative guide explores practical approaches to sustainable software engineering, from resource-efficient design to mindful architecture, empowering you to reduce your environmental impact while building better systems.

In this book key contributors to the JavaParser library teach you how to programmatically analyse, transform and generate your java code base. The first part of the book aims to introduce you to the basics of the library before the team take you through a more detailed look at some of their favourite applications of the library.