I have recently gotten a request by a server I develop for to customize Bukkit. However I have been having a problem doing so. I have successfully gotten the CraftBukkit source from the Github repository and imported it using Maven. It successfully builds and runs a server. However, I need to edit code from the org.bukkit package (the Bukkit API code), and it seems to be missing. I went into pom.xml and noticed that it references the org.bukkit files from the external repository. So here is my question. How can I use the edited org.bukkit code inside Craftbukkit? I have already compiled a jar of the edited code called bukkit.jar. Is there a way to reference a jar from Maven? Is there a different way to do this?