Stop Polluting Your Domain with Static Factories: Clean Validation with Java 25 Flexible Constructor Bodies
Stop Polluting Your Domain with Static Factories: Clean Validation with Java 25 Flexible Constructor Bodies For years, Java forced us to write bloated static factory methods just to validate arguments before calling super() . With Java 25 LTS standardizing flexible constructor bodies (JEP 492) in 2026, you can finally run pre-construction logic safely inside the constructor where it belongs. Why…
Avoid polluting your Java classes with static factories for argument validation. Java 25's flexible constructor bodies remove the need for cumbersome static factories. Validate arguments directly within the constructor's prologue before calling super(). Place fail-fast checks at the top of the constructor to halt allocation on bad input.
Transform input values before passing them up the inheritance chain. Delete redundant static factories that only orchestrate pre-super checks. Use Java 25's compiler enforced pro-construction context to ensure only valid references reach the constructor. This clean approach eliminates unnecessary boilerplate and creates more idiomatic object hierarchies.
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