1 files changed, 33 insertions, 0 deletions
diff --git a/tests/untried/pos/spec-cyclic.scala b/tests/untried/pos/spec-cyclic.scala
new file mode 100644
index 000000000..6cd768537
--- /dev/null
+++ b/tests/untried/pos/spec-cyclic.scala
@@ -0,0 +1,33 @@
+trait AbsFun[@specialized -A, @specialized +B] {
+  def apply(x: A): B
+}
+
+trait MyPartialFunction[-A, +B] extends AnyRef with AbsFun[A, B]
+
+trait ColMap[A, +B] extends MyPartialFunction[A, B] /*with Collection[(A, B)] */
+
+trait ColSorted[K,+A] extends ColRanged[K,A]
+
+trait ColSortedMap[K,+E] extends ColMap[K,E] with ColSorted[K,Tuple2[K,E]]
+
+trait MutMap[A, B] extends AnyRef
+      with ColMap[A, B]
+
+trait ColRanged[K, +A] //extends Iterable[A]
+
+trait JclRanged[K,A] extends ColRanged[K,A] //with MutableIterable[A] {
+
+trait JclMap[K,E] extends /*collection.jcl.MutableIterable[Tuple2[K,E]] with*/ MutMap[K,E]
+
+trait JclSorted[K,A] extends ColSorted[K,A] with JclRanged[K,A]
+
+trait JclSortedMap[K,E] extends ColSortedMap[K,E] with JclMap[K,E] with JclSorted[K,Tuple2[K,E]]
+
+class Foo[A, B] extends JclSortedMap[A, B] {
+  def apply(x: A): B = sys.error("NYI")
+}
+
+class Bar {
+  val x: Foo[Int, Int] = new Foo[Int, Int]
+  x.apply(0)
+}