Java has always allows us to say "this class cannot be extended" by marking the class final. The existence of final in the language acknowledges a basic fact about classes: sometimes they are designed ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Jinsong Yu shares deep architectural insights ...

A proposal before the OpenJDK development team would add hidden classes to Java, a capability intended to improve the efficiency of language implementations built on the JVM. Hidden classes are ...