Java 25 is the next Long-Term Support release and the most significant Java upgrade since Java 21. Here is a practical look at what it delivers, why LTS matters for production codebases, and how a functional-style library like dmx-fun benefits from the new language features.
Where does the line fall between adopting functional ideas that genuinely improve Java code and chasing theoretical purity that only adds ceremony? A frank look at what FP concepts are worth carrying into production Java, and which ones are better left in the research papers.
Version 0.0.10 brings sequence and traverse combinators to Try, Optional interop for both Result and Try, and a full set of Stream collectors for Result including stream(), toList(), and partitioningBy().
Learn how to model error-handling as two parallel tracks—success and failure—using pure Java and a Result type, eliminating scattered exceptions and making your business pipelines composable, readable, and testable.
Immutability is one of those ideas that sounds simple—an object doesn’t change after it’s created—but has surprisingly deep consequences for design quality, correctness, and long-term maintainability.
Explore powerful composition patterns to build complex functionality from simple, reusable functions
Introducing the dmx-fun blog - your resource for functional programming in Java