1 files changed, 26 insertions, 0 deletions
diff --git a/test/files/run/t4891/S_1.scala b/test/files/run/t4891/S_1.scala
new file mode 100644
index 0000000000..3309d22fbd
--- /dev/null
+++ b/test/files/run/t4891/S_1.scala
@@ -0,0 +1,26 @@
+package test.generic {
+  class C1[A] {
+    def m1(): Unit = ()
+  }
+
+  trait T1[A] extends C1[A] {
+    def t1(x: A) = x
+  }
+
+  class C2[A] extends T1[A]
+}
+
+import scala.tools.partest._
+
+object Bug4891 extends SigTest {
+  import test.generic._
+
+  def main(args: Array[String]): Unit = {
+    show[T1[_]]()
+    show[C1[_]]()
+    show[C2[_]]("m1")
+
+    println(classOf[T1[_]].getGenericSuperclass)
+    classOf[T1[_]].getGenericInterfaces foreach println
+  }
+}