NumberAdder.java

package com.gofore.test;

import com.gofore.fixme.annotation.Fixme;

import java.util.List;

public class NumberAdder {

    @Fixme(summary = "Use stream instead of loop")
    public static int add(List<Integer> numbers) {
        if (numbers.isEmpty()) {
            throw new IllegalArgumentException("Numbers is empty");
        }

        int result = 0;
        for (Integer i : numbers) {
            result += i;
        }
        return result;
    }
}