@Override
        public String toString() {
            return "Divider{" +
                   "div=" + div +
                   ", unit=" + Arrays.toString(unit) +
                   '}';
        }
Separates the parts in lowerCamelCase or UpperCamelCase with spaces,
e.g. 'lower Camel Case' and 'Upper Camel Case'.
stroom-util-shared/src/main/java/stroom/util/shared/ModelStringUtil.java