Install java-policy by entering the following commands in the terminal:
sudo apt update sudo apt install java-policy
Description:
Debian Java Policy
This package contains: * The Java policy document which describes the layout of Java support in Debian and how Java packages should behave. * The Debian-Java-FAQ which provides information on the status of Java support in Debian, available compilers, virtual machines, Java programs and libraries as well as on legal issues.
Homepage: https://wiki.debian.org/Java/
Version: 0.55
Section: universe/java