closes #3241 and improves serialization of hash...

closes #3241 and improves serialization of hash tries. review by
community.

1 files changed, 23 insertions, 0 deletions

diff --git a/test/files/run/t3241.scala b/test/files/run/t3241.scala
new file mode 100644
index 0000000000..40097a046f
--- /dev/null
+++ b/test/files/run/t3241.scala
@@ -0,0 +1,23 @@
+object Test {
+
+  def main(args : Array[String]) : Unit = {
+    recurse(Map(1->1, 2->2, 3->3, 4->4, 5->5, 6->6, 7->7))
+    recurse(Set(1,2,3,4,5,6,7))
+    println("done")
+  }
+
+  def recurse(map: collection.immutable.Map[Int, Int]): Unit = {
+    if (!map.isEmpty) {
+      val x = map.keys.head
+      recurse(map - x)
+    }
+  }
+
+  def recurse(set: collection.immutable.Set[Int]): Unit = {
+    if (!set.isEmpty) {
+      val x = set.toStream.head
+      recurse(set - x)
+    }
+  }
+
+}