The Java Tutorials ‘ Deployment Trail features the Packaging Programs in JAR Files lesson that includes the relevant section Setting Package Version Information.

Use Java's packages and static imports to organize top-level types and simplify access to their static members.

With this invaluable book-and-DVD package, Java authority Yakov Fain fully covers Java's new features as well as its language extensions, classes and class methods, and the Swing Application ...

Canonical has announced that OpenJDK 11 has become the default Java package on Ubuntu 18.04 LTS, replacing OpenJDK 10. The move comes days after Red Hat announced its stewardship of OpenJDK 11.