2 files changed, 13 insertions, 0 deletions
diff --git a/tests/pos/t1896/D0.scala b/tests/pos/t1896/D0.scala
new file mode 100644
index 000000000..6b3150d96
--- /dev/null
+++ b/tests/pos/t1896/D0.scala
@@ -0,0 +1,11 @@
+package p
+
+class X[T]
+
+trait A {
+  def m(s:X[_]): Unit = {}
+}
+
+trait B extends A {
+  def f: Unit = { super.m(null) }
+}
diff --git a/tests/pos/t1896/D1.scala b/tests/pos/t1896/D1.scala
new file mode 100644
index 000000000..e1ab50679
--- /dev/null
+++ b/tests/pos/t1896/D1.scala
@@ -0,0 +1,2 @@
+package p
+class C extends B