Classes using util classes cannot be test in isolation. … Util classes often group functions that are not related at all (low cohesion). Often Utility classes can contain a huge amount of dead methods or codes. Utility classes do not follow object-oriented

Is utility class bad?

Utility classes aren’t exactly evil, but they can violate the principles that compose a good object-oriented design. In a good object-oriented design, most classes should represent a single thing and all of its attributes and operations.

Why are helper classes bad?

Why are static helper classes bad? Static helper classes are bad because they make programs harder to understand (and thus harder to onboard new developers to), lead to bugs because it’s unclear what data they’re meant to operate on, and they make changes harder due to increased coupling.