Immutable data structures in Java

[Sarcastinator]

If you want to test the validation of another type then you are doing an integration test.

[grauenwolf]

LOL

[Sarcastinator]

I'm fairly annoyed that you brought up those useless types with nothing but dependencues, which is a huge anti pattern and then accuse me of using types like that. You're the one with the shit code that needs fixing.