Sven Woltmann 9/3/2025

Withers in Java: “Derived Record Creation Expressions”

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This article details Java's proposed 'Derived Record Creation Expressions' (Withers), a preview feature for creating new records from existing ones by specifying only changed fields. It covers the need for withers, compares them to explicit wither methods, explains how they work, and discusses their restrictions, using a Point3D record as a practical example throughout.

Withers in Java: “Derived Record Creation Expressions”

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