[pragmatick]

I only looked over your code for a minute but found some stuff I would comment on in a code review.

Comment for a method says "null safe" - why not use an annotation?

A package called "util" is a code smell for me.

UrlUtils only provides two methods for URL encoding so why not name it appropriately?

[Tokumei-no-hito]

I’ve always heard about the “util” package code smell but usually in complex contexts that are hard to discuss.

How would you refactor this to avoid a util package or a UrlUtils class?