Jdk 16: Whatвђ™s Coming In Java 16 Apr 2026

The following features graduated from preview status to become permanent parts of the Java language in version 16:

Old way : if (obj instanceof String) { String s = (String) obj; ... } JDK 16: What’s coming in Java 16

JDK 16, released on March 16, 2021, introduced 17 main enhancements (JDK Enhancement Proposals or JEPs) designed to improve developer productivity, application performance, and platform modernization. As a release, it was supported for six months until the release of Java 17. Key Production-Ready Language Features The following features graduated from preview status to

New way : if (obj instanceof String s) { ... use s directly ... } Modernization and Infrastructure Key Production-Ready Language Features New way : if

: Simplifies the common task of checking an object's type and then casting it. It allows you to declare a binding variable directly in the instanceof check.

: Designates primitive wrapper classes (like Integer and Double ) as value-based and deprecates their constructors for removal to prepare for future Project Valhalla enhancements. Performance and Tools The Arrival of Java 16 - Oracle Blogs