Using Google’s Guava I can considerably simplify my implementation. I trust Google developers. Those guys generally know their handiwork. After this refactoring, I’m finally content with my implementation. ► All Potter Kata Episodes: http://goo.gl/m9E4vF ► Let’s Develop! http://letsdeveloper.com ► Don’t Miss an Episode: http://goo.gl/whzDi1 ► CodingDojo: http://codingdojo.org/cgi-bin/index.pl?KataPotter ► The Code: […]