In the third part of my series, I explore strong encapsulation in Java modules — and how to properly hide implementation details in internal packages so that neither the compiler nor the JVM allow other modules to access them.

This article shows how to design truly well-encapsulated modules when working with Java Modules and Maven 4, helping teams build cleaner and more maintainable architectures.

https://open-elements.com/posts/2026/03/12/java-modules-encapsulation-internal-packages/