I suggest also adding encryption ponctuation using pontuation list: for example in the set [",",";",":","?","!"," ","."] with a shifting of 5 "!" becomes ":"

Good to see random tests in place but there are already numerous Kata, both published and in Beta, dealing with Caesar Cipher which makes this Kata a duplicate. Please edit this Kata to make it unique from the others.

There already exists published kata with a similar premise in multiple languages, including python.

Hey,
I would be interested in creating a Java version of this. Can I create it here or do you mind if I created a new one for Java?