A Java bro told me they have lots of pain with version conflicts, since Java world is so reliant both on tons of libraries and on strict interfaces. Apparently

A Java bro told me they have lots of pain with version conflicts, since Java world is so reliant both on tons of libraries and on strict interfaces. Apparently there's something called 'dependency shading' to overcome this issue, though seems like it has to be done by the dependency vendor, not the user. NPM notably doesn't have any problems with different versions (afaik), since imported modules are simply variables in the importing ones, and not in a global namespace. I think it's also possible to implement that in Python due to similar semantics, though it's not currently available.