Deleted code doesn’t contain bugs, they say. I always felt kind of unsafe with the idea of actually and straightforward removing code while into refactoring smaller or larger parts of the systems – after all, same as it doesn’t contain bugs, deleted code also doesn’t contain business logic anymore which might not be what you want at times. Yet, trying to clean up parts of (the Java / Java EE based) components in our system, I have to some degree changed my mind about that.