fixed problem with volatile types.

1 files changed, 15 insertions, 0 deletions

diff --git a/test/files/neg/null-unsoundness.scala b/test/files/neg/null-unsoundness.scala
new file mode 100644
index 0000000000..d30ff613b1
--- /dev/null
+++ b/test/files/neg/null-unsoundness.scala
@@ -0,0 +1,15 @@
+class B
+class C(x: String) extends B
+
+class A {
+  type A >: Null
+  class D { type T >: C <: B }
+  val x: D with A = null
+  var y: x.T = new C("abc")
+}
+object Test extends A with Application {
+  class C { type T = Int; val x = 1 }
+  type A = C
+  y = 42
+}
+