OpenJDK21: OpenJDK21 (open implementation of JDK 21 LTS) OpenJDK21: OpenJDK21: OpenJDK21 is an open source implementation of version 21 (LTS) of OpenJDK21: the Java Development Kit, Standard Edition. It includes tools for OpenJDK21: developing, testing, and running programs written in Java. OpenJDK21: OpenJDK21: OpenJDK21: OpenJDK21: OpenJDK21: homepage: https://OpenJDK.java.net/ OpenJDK21: