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-rw-r--r--src/library/scala/collection/generic/ImmutableMapFactory.scala2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/library/scala/collection/generic/ImmutableMapFactory.scala b/src/library/scala/collection/generic/ImmutableMapFactory.scala
index 92762fd53b..88862d3b4e 100644
--- a/src/library/scala/collection/generic/ImmutableMapFactory.scala
+++ b/src/library/scala/collection/generic/ImmutableMapFactory.scala
@@ -15,6 +15,8 @@ import mutable.{Builder, MapBuilder}
/** A template for companion objects of <code>immutable.Map</code> and
* subclasses thereof.
+ *
+ * @since 2.8
*/
abstract class ImmutableMapFactory[CC[A, +B] <: immutable.Map[A, B] with immutable.MapLike[A, B, CC[A, B]]]
extends MapFactory[CC] {