Cannot install openjdk-8-jre-headless on Debian Jessie
This worked for me: apt install -t jessie-backports openjdk-8-jre-headless ca-certificates-java REF: https://unix.stackexchange.com/questions/342403/openjdk-8-jre-headless-depends-ca-certificates-java-but-it-is-not-going-to-be