[gutnor]

That reminds me of "constant interface" anti-pattern - abusing a feature because it brings a small technical benefit.

If you are unhappy with candy-shop utils class and are ready to split them into smaller entities, go the whole way there. Create proper small classes, and inject them using your chose DI technology.

Anyway, kudos to the author, that was a risky article to put together and there was no way to write it without controversial recommendations. That's a good start for what a new java developer need to look for.