uniqueElements().iterator() filters nulls out

[Georgiy Rakov]

Hello,

if s is a sequential stream than s.uniqueElements().iterator() returns 
iterator which filters nulls out.

Consider following code.

    import java.util.ArrayList;
    import java.util.Arrays;
    import java.util.Iterator;
    import java.util.List;

    public class UniqueElementsIssue2 {
         public static void main(String arg[]) {
             Iterator<Integer> it = Arrays.asStream(1, 2, 3, null, 4,
    5).uniqueElements().iterator();
             Integer i = null;
             List<Object> result1 = new ArrayList<>();
             while (it.hasNext()) {
                 i = it.next();
                 result1.add(i);
             }
             List<Object> result2 = new ArrayList<>();
             Arrays.asStream(1, 2, 3, null, 4,
    5).uniqueElements().into(result2);
             System.out.println("resul1=" +
    Arrays.toString(result1.toArray()));
             System.out.println("resul2=" +
    Arrays.toString(result2.toArray()));
         }
    }

It produces following output:

    resul1=[1, 2, 3, 4, 5]
    resul2=[1, 2, 3, null, 4, 5]

result1 seems to be faulty while result2 is ok (into() works fine).

As for me it's a bug but anyway could you please confirm that it is.

Code above is attached for your convenience.

Thanks,
Georgiy.
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: UniqueElementsIssue2.java
Url: http://mail.openjdk.java.net/pipermail/lambda-dev/attachments/20121130/d1c80aff/UniqueElementsIssue2.java