I have been been running trusty since the first alpha release, pulling daily updates. I also installed the oracle-java7-installer from the WebUpd8 PPA. Today I noticed during a dist-upgrade that oracle-java7-installer was being removed. On my edge system I just allow all the defaults so I allowed the removal expecting to try out the java 8 version anyway. However when I went to install the oracle-java8-installer package it wanted to remove "apt"!? This obviously sparked my concern, as it even feels like a security concern. Help understanding this would be greatly appreciated.
$ sudo apt-get install oracle-java8-installer Reading package lists... Done Building dependency tree Reading state information... Done Suggested packages: visualvm ttf-baekmuk ttf-unfonts ttf-unfonts-core ttf-kochi-gothic ttf-sazanami-gothic ttf-kochi-mincho ttf-sazanami-mincho ttf-arphic-uming The following packages will be REMOVED: apt apturl nautilus-share python3-software-properties software-center software-properties-common software-properties-gtk ubuntu-extras-keyring ubuntu-minimal unattended-upgrades The following NEW packages will be installed: oracle-java8-installer WARNING: The following essential packages will be removed. This should NOT be done unless you know exactly what you are doing! apt 0 upgraded, 1 newly installed, 10 to remove and 0 not upgraded. Need to get 18.7 kB of archives. After this operation, 7,838 kB disk space will be freed. You are about to do something potentially harmful. To continue type in the phrase 'Yes, do as I say!' ?]