Java 8 Stream IllegalStateException: Stream has already been operated on or closed

Question

I\'m trying to generate Order instances using the Stream API. I have a factory function that creates the order, and a DoubleStream is used to initialize the amount of the o

Answer 1

Your method could be a one-liner like this instead. You need to use mapToObj, not map

private List createOrders(int numberOfOrders) {
     return doubleStream.limit(numberOfOrders).mapToObj(Order::new).collect(Collectors.toList());
}