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kotlinlang

is there an interface for "something that can be converted to a path"?
so my API can take "path-like" things without forcing the user to convert at the use site.
maybe there's a generic bound for this?

Do you mean an object that is either a `File` or a `String` or a `URI` or an actual `Path`? There's no interface that defines them, but you could use function overloading. However, it's more type-safe (and self-documenting) to force the user to convert to `Path` at the call site, and many stdlib (or Java API) methods already do this.