Chapter 1, Introduction, introduces Java EE enterprise applications and why Java EE is (still) relevant in modern systems.

Chapter 2, Designing and Structuring Java Enterprise Applications, shows how to design the structure of an enterprise application using examples, keeping design enterprise applications with business use cases in mind.

Chapter 3, Implementing Modern Java Enterprise Applications, covers how to implement modern Java EE applications and why that technology choice is still relevant today.

Chapter 4, Lightweight Java EE, teaches you how to realize lightweight Java EE applications with a small footprint and minimal third-party dependencies.

Chapter 5, Container and Cloud Environments with Java EE, explains how to leverage the benefits of containers and modern environments, how to integrate enterprise applications, and how this movement encourages productive development workflows.

Chapter 6, Application Development Workflows, covers the key points for fast development pipelines and high software quality, from Continuous Delivery to automated testing and DevOps.

Chapter 7, Testing, as the name suggests, covers the topic of testing, which helps enable you to ensure high quality in software development automated testing with reasonable coverage.

Chapter 8, Microservices and System Architecture, shows the key points of how to design systems after the project and company circumstances, how to construct applications and their interfaces, and when microservice architectures make sense.

Chapter 9, Security, covers how to realize and integrate security concerns in today's environments.

Chapter 10, Monitoring, Performance, and Logging, covers why traditional logging is harmful, how to investigate performance issues, and how to monitor the business and technical aspects of an application.

Appendix, Conclusion, recapitulates and summarizes the contents of the book, including giving advice and motivation.