The old Etherpad is no more maintained. It was written in Scala and had a huge mass of dependencies such as OpenOffice.
Instead, we want to drop Etherpad and migrate to Etherpad Lite which is build on node.js and is the new maintained version.
RT ticket has already been filled:
https://rt.wikimedia.org/Ticket/Display.html?id=1720
Version: unspecified
Severity: normal