1echo deb http://archive.debian.org/debian jessie-backports main | sudo tee /etc/apt/sources.list.d/jessie-backports.list
2echo 'Acquire::Check-Valid-Until "false";' | sudo tee -a /etc/apt/apt.conf
3sudo apt update
4sudo apt -t jessie-backports install openjdk-8-jre
5