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-rw-r--r--src/library/scala/collection/immutable/BitSet.scala5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/library/scala/collection/immutable/BitSet.scala b/src/library/scala/collection/immutable/BitSet.scala
index e7fd5c7f0f..fe3edbe88b 100644
--- a/src/library/scala/collection/immutable/BitSet.scala
+++ b/src/library/scala/collection/immutable/BitSet.scala
@@ -20,10 +20,11 @@ import mutable.{ Builder, AddingBuilder }
* @define Coll immutable.BitSet
* @define coll immutable bitset
*/
-@serializable @SerialVersionUID(1611436763290191562L)
+@SerialVersionUID(1611436763290191562L)
abstract class BitSet extends Set[Int]
with scala.collection.BitSet
- with BitSetLike[BitSet] {
+ with BitSetLike[BitSet]
+ with Serializable {
override def empty = BitSet.empty
def fromArray(elems: Array[Long]): BitSet = BitSet.fromArray(elems)