Review

Invokes a second terminal operation on a stream, which causes an "IllegalStateException: stream has already been operated upon or closed". Remove the second terminal operation to prevent this.

• superfluous/call

com/xpinjection/java8/misused/stream/incorrect/UseStreamMoreThanOnce.java

streamIsClosedAfterTerminalOperation()

class UseStreamMoreThanOnce {
    @Bad
    public void streamIsClosedAfterTerminalOperation() {
        int[] array = new int[]{1, 2};
        IntStream stream = Arrays.stream(array);
        stream.forEach(System.out::println);
        array[0] = 2;
        stream.forEach(System.out::println);
        //IllegalStateException: stream has already been operated upon or closed
    }

}

public class JustOneTerminalOperationPerUsage {
    public void correctUsage() {
        int[] array = new int[]{1, 2};
        IntStream stream = Arrays.stream(array);
        stream.forEach(System.out::println);
        array[0] = 2;
        stream = Arrays.stream(array);
        stream.forEach(System.out::println);
    }
}