How does this handle "Pak should not be the first or last word. Strings of just spaces should return an empty string." ?

Fixed in Java, Crystal, and R. If there are any other languages that generate tests with less than 4 numbers, let me know.

Fixed the Java tests so they no longer generate incorrect ones.

Approved by someone

The descrition mentions arrays of at least 4 numbers, in reality arrays of length 0 and 1 are passed.
this is evident by the out of bound erros when accessing the elements.

the description should be updated

https://www.codewars.com/kata/558fc85d8fd1938afb000014/discuss/javascript#66a125a0d9b42a57468382bf

Wrong Information within the Description "given an array of minimum 4 positive integers.".
In Java tested arrays can be smaller than 4 and the integers can be negative.