Java JEP 401 Value Classes and Objects PR Lands in OpenJDK — Long-Awaited Project Valhalla Feature
r/programming·medium signal
Pull request #31120 for JEP 401 (Value Classes and Objects) has been submitted to the OpenJDK main repository, bringing Project Valhalla's value objects to Java as a preview feature. Value classes eliminate object identity overhead, enabling inline storage and reduced heap allocation for immutable data types. This has been one of Java's most requested features, under development since JDK 10.