java - How to install openjdk-8-jdk on Debian 10 (Buster)? - Stack Overflow
linux - Install JDK 9 on debian 10 - Unix & Linux Stack Exchange
Installing openjdk/jre-8 on Debian 10
Error installing Java 8 on Debian 10
Make a chroot with Debian 9.
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Alternatively, you can use adoptopenjdk repository:
wget -qO - https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public | sudo apt-key add -
sudo add-apt-repository --yes https://adoptopenjdk.jfrog.io/adoptopenjdk/deb/
sudo apt-get update && sudo apt-get install adoptopenjdk-8-hotspot
https://adoptopenjdk.net/installation.html
WARNING: this answer suggest unsupported and dangerous mixing of Debian releases. Follow the advice on your own risk, as it can break the system on upgrades, as explained in http://wiki.debian.org/DontBreakDebian#Don.27t_make_a_FrankenDebian
Package mirror search steps:
In the Search package directories search for openjdk-8-jdk. You can see two results:
- stretch (oldstable) (java): OpenJDK Development Kit (JDK)
- sid (unstable) (java): OpenJDK Development Kit (JDK)
Choose stretch repository
Scroll to the Download openjdk-8-jdk section and choose your architecture. For example amd64
Now you can see mirrors list and instructions how to install the package via apt:
You should be able to use any of the listed mirrors by adding a line to your /etc/apt/sources.list like this:
deb http://security.debian.org/debian-security stretch/updates main
Installation steps:
Install software source manager
apt-get update apt-get install software-properties-commonAdd mirror with openjdk-8-jdk
apt-add-repository 'deb http://security.debian.org/debian-security stretch/updates main' apt-get updateInstall openjdk 8
apt-get install openjdk-8-jdk
Note: You can use steps above to find an official Debian mirror with any other package you want to install