1 files changed, 25 insertions, 0 deletions
diff --git a/tests/pos/t2454.scala b/tests/pos/t2454.scala
new file mode 100644
index 000000000..00f2e6f67
--- /dev/null
+++ b/tests/pos/t2454.scala
@@ -0,0 +1,25 @@
+package am;
+
+trait One[M[_]] {
+  val x : Int
+}
+
+trait Two[M[_,_]] {
+  val x : Int
+}
+
+object Test {
+  // Works.
+  val x = new Two[Map] {
+    val x = 5
+  }
+
+  val o = new One[java.util.List] {
+    val x = 1
+  }
+
+  // Does not work
+  val y = new Two[java.util.concurrent.ConcurrentHashMap] {
+    val x = 3
+  }
+}