I need to install open-jdk 7.
I know it used to be possible to simply type
sudo apt install openjdk-7-jdk, but this doesn't work any more.
I know that Java 7 has become quite obsolete, but it is still being maintained - a security update was released a few days ago, so I hope it's still possible to install it.
I'm using Debian 9.
Anyone knows how to do it?