boon/src/main/java/org/boon/collections/IntList.java
public long reduceBy(Object function, String name) {
        return Int.reduceBy(values, end, function, name);
    }
public long reduceBy(Object function, String name) {
        return Int.reduceBy(values, end, function, name);
    }
This would be a good opportunity to reintroduce dynamic invoke

@param function function
@return