I am using Intellij IDEA as my IDE, and I have only the CraftBukkit library, as can be seen here. I always get an "ambiguous method call", which can be seen here. I see no reason as to why this should be happening. I am not using Maven, so I don't have a pom.xml. Of course it doesn't affect the final product, but it's still annoying, and shouldn't be happening (right?).