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-rw-r--r--test/files/neg/t2031.check6
-rw-r--r--test/files/neg/t2031.scala9
2 files changed, 15 insertions, 0 deletions
diff --git a/test/files/neg/t2031.check b/test/files/neg/t2031.check
new file mode 100644
index 0000000000..6fd70143eb
--- /dev/null
+++ b/test/files/neg/t2031.check
@@ -0,0 +1,6 @@
+t2031.scala:8: error: polymorphic expression cannot be instantiated to expected type;
+ found : [A]scala.collection.generic.Builder[A,scala.collection.immutable.TreeSet[A]]
+ required: scala.collection.generic.BuilderFactory[Int,?,scala.collection.immutable.TreeSet[Int]]
+ res0.map(x => x)(TreeSet.newBuilder)
+ ^
+one error found
diff --git a/test/files/neg/t2031.scala b/test/files/neg/t2031.scala
new file mode 100644
index 0000000000..e4708c45ac
--- /dev/null
+++ b/test/files/neg/t2031.scala
@@ -0,0 +1,9 @@
+import scala.collection.immutable._
+
+object Test extends Application {
+ val res0 = TreeSet(1, 2, 3)
+
+ //res0.map(x => x)(TreeSet.newBuilder[Int])
+
+ res0.map(x => x)(TreeSet.newBuilder)
+}