Unable to install openjdk-13-jdk-headless=13~30-1 using base image debian:buster
Reading package lists... + apt-get install -y --no-install-recommends openjdk-13-jdk-headless=13~30-1 Reading package lists... Building dependency tree... Reading state information... E: Unable to locate package openjdk-13-jdk-headless
Please help
OpenJDK 13 is not available from the "buster" repo. It is only available in "bullseye" (testing) and "sid" (unstable).
(See https://packages.debian.org/search?keywords=openjdk-13)
Alternatively, you can download an OpenJDK Java 13 binary release as a "tar.gz" file from https://jdk.java.net/archive/ and install from that.
Note that Java 13 is now superseded, and will be end-of-life in September 2020.