Please see relevant issue I filed for Jade Addons: Snownee/JadeAddonsFabric#15

Due to the repackaging, the Lootr integration with Jade Addons now causes a classload failure.

A sensible approach would be (as described in the linked issue) to add access to the relevant information in the API.

I've decided to restore the original structure in the next release for Fabric to resolve this and any other issues, and switch to the new package format in the next major release.