Boilerplate function for mapping a list to another using stream API internally. Note that this defeats the purpose of streams, which are lazy and combine operations together. Use it only for one level of mapping where logic is not piped and results need to be immediately realized.

GenericMap.java

    static <T, R> List<R> map(List<T> list, Function<? super T, ? extends R> mapper) {
        return list.stream().map(mapper).collect(Collectors.toList());
    }