OpenJDK installation inform that fdescfs(5) and procfs(5) should be mounted when using OpenJDK. After doing some test and some traces, it seems that this should be no so usefull, some applications will require it, but most of java applications doesn't seems to suffer to work or performance when such pseudo FS is not mounted. So this change request permit to let local administrator to decide if it is really needed or not. I have opened a Phabricator about this change or pkg-message, feel free to participate. Kind regards