Could someone take a look at my Java translation? I used some of my C++Fu, but I'm not sure whether the tests and/or code are idiomatic Java.

No one has translated this kata to Java yet, an I'm not proficient enough to provide a well written translation myself. EDIT: I've tried to translate the kata to Java, but I would like to get a second opinion before I add it.

range uses too much memory (it generates a list). Have a look at xrange or try another approach that doesn't eat all memory.