Why installing openjdk-7-jdk on Ubuntu Trusty installs systemd as well?

[Yuri Kanivetsky]

I did apt-get update and dist-upgrade, and systemd is still there:
https://gist.github.com/x-yuri/a91fec5e70be223a524895f374870a71

Should I probably try it in Virtualbox VM... It may have something to
do with lxc containers, probably...