OpenJDK is the most "official" Java out there. Oracle develops OpenJDK, and as of JDK 11 all previously commercial features of Oracle JDK have been contributed

OpenJDK is the most "official" Java out there. Oracle develops OpenJDK, and as of JDK 11 all previously commercial features of Oracle JDK have been contributed to OpenJDK, so that now Oracle JDK and OpenJDK are essentially identical[1] [1]: https://blogs.oracle.com/java-platform-group/oracle-jdk-releases-for-java-11-and-later https://blogs.oracle.com/java-platform-group/oracle-jdk-rele...