If you have external jars that need downloaded into your project, you can use the jar:
endpoint to download them. The jar endpoint does not expect the jars to be contained in a zip file or to have a box.json. As such, there is no real package slug or name, so CommandBox will "guess" the name based on the name of the jar (if a jar name appears in the path or query string).
Files from the jar:
endpoint will be placed in a lib/
folder by default unless you provide another folder for installation.
You can specify jars as dependencies in your box.json
in this format.
Note this installation method does not include any dependencies of the jar like a Maven installation would. That will be a future endpoint.