Fixes NPE using iterator with an XML attribute ...

Fixes NPE using iterator with an XML attribute being null or None      )
(SI-5052 Also fixes incorrect size method (SI-5115                     )

Contributed by Jordi Salvat i Alabart. Closes SI-5052, SI-5115, no
review.

1 files changed, 14 insertions, 0 deletions

diff --git a/test/files/run/t5115.scala b/test/files/run/t5115.scala
new file mode 100644
index 0000000000..cf25214715
--- /dev/null
+++ b/test/files/run/t5115.scala
@@ -0,0 +1,14 @@
+import scala.collection.Iterable
+
+object Test extends App {
+  def assertHonorsIterableContract(i: Iterable[_]) = assert(i.size == i.iterator.size)
+
+  assertHonorsIterableContract(<a/>.attributes)
+  assertHonorsIterableContract(<a x=""/>.attributes)
+  assertHonorsIterableContract(<a y={None}/>.attributes)
+  assertHonorsIterableContract(<a y={None} x=""/>.attributes)
+  assertHonorsIterableContract(<a a="" y={None} />.attributes)
+  assertHonorsIterableContract(<a y={null:String}/>.attributes)
+  assertHonorsIterableContract(<a y={null:String} x=""/>.attributes)
+  assertHonorsIterableContract(<a a="" y={null:String} />.attributes)
+}