For anyone else having issues with installing Java 8 now, I managed to get back up and running by using Oracle's official version of Java.
For convenience here's a list of commands one has to run to get Java 8 working on their Debian Jessie machine (until this issue gets resolved): echo -e "deb http://ppa.launchpad.net/webupd8team/java/ubuntu xenial main\ndeb-src http://ppa.launchpad.net/webupd8team/java/ubuntu xenial main" > /etc/apt/sources.list.d/webupd8team-java.list sudo apt-get update sudo apt-get install oracle-java8-installer echo "JAVA_HOME=\"/usr/lib/jvm/java-8-oracle\"" > /etc/environment source /etc/environment
