So recently I got a bit into maven, and now I wondered if there was a way to get the plugins from dev.bukkit.org via a repository? Then I guess this doesn't exist? EDIT by Moderator: merged posts, please use the edit button instead of double posting.
I don't think so. A lot of the larger plugins have links to their own repository though, which you could use.
I actually suggested this about 18 months ago: https://forums.bukkit.org/threads/suggestion-dev-bukkit-org-maven-repo.61198/ Basically: everyone like the idea, but implementation would be rather difficult, and there are probably aren't enough man-hours available to make it practical.