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-rw-r--r--src/library/scala/collection/generic/GenericTraversableTemplate.scala2
-rw-r--r--test/files/run/t4608.scala11
2 files changed, 12 insertions, 1 deletions
diff --git a/src/library/scala/collection/generic/GenericTraversableTemplate.scala b/src/library/scala/collection/generic/GenericTraversableTemplate.scala
index 37d86a0aa9..805009be77 100644
--- a/src/library/scala/collection/generic/GenericTraversableTemplate.scala
+++ b/src/library/scala/collection/generic/GenericTraversableTemplate.scala
@@ -67,7 +67,7 @@ trait GenericTraversableTemplate[+A, +CC[X] <: GenTraversable[X]] extends HasNew
*/
def genericBuilder[B]: Builder[B, CC[B]] = companion.newBuilder[B]
- private def sequential: TraversableOnce[A] = this.asInstanceOf[TraversableOnce[A]].seq
+ private def sequential: TraversableOnce[A] = this.asInstanceOf[GenTraversableOnce[A]].seq
/** Converts this $coll of pairs into two collections of the first and second
* half of each pair.
diff --git a/test/files/run/t4608.scala b/test/files/run/t4608.scala
new file mode 100644
index 0000000000..a25d2fea05
--- /dev/null
+++ b/test/files/run/t4608.scala
@@ -0,0 +1,11 @@
+
+
+
+// #4608
+object Test {
+
+ def main(args: Array[String]) {
+ ((1 to 100) sliding 10).toList.par.map{_.map{i => i * i}}.flatten
+ }
+
+}