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Aug 11, 2026 · Fundamentals

How Project Valhalla Repays Java’s 20‑Year Generics Debt

The article traces the 20‑year history of Java’s type‑erased generics, contrasts it with C#’s reified generics, explains the performance and compatibility trade‑offs, and shows how Project Valhalla’s value classes and generic specialization finally close the gap.