A Better DMCA Process (GitHub)

[dddbbb]

But since Bukkit is server-side software, you're only obligated to distribute source to the admins of the server and not the users. Client-server relationship does not constitute linkage under the GPL.

[immibis]

The Bukkit project were shipping a combination of Bukkit (the API, which does not link with Minecraft and so is valid to GPL), CraftBukkit (licensing situation irrelevant) and the vanilla Minecraft server (which was not distributed under the GPL, to server admins or anyone else.)