1 files changed, 19 insertions, 0 deletions
diff --git a/tests/bugs160/pr168044/AbstractNode.java b/tests/bugs160/pr168044/AbstractNode.java
new file mode 100644
index 000000000..bb1401fb4
--- /dev/null
+++ b/tests/bugs160/pr168044/AbstractNode.java
@@ -0,0 +1,19 @@
+public abstract class AbstractNode < SelfNode extends AbstractNode<SelfNode, DualNode>, DualNode extends AbstractNode<DualNode, SelfNode> > {
+}
+
+class SubClass extends AbstractNode<A,B> {
+}
+
+class A extends AbstractNode<A,B> { }
+class B extends AbstractNode<B,A> { }
+
+abstract class Mad
+<
+   Id       extends Comparable<Id>,
+   Np       extends Mad<Id, Np, Nt, Np, Nt>,
+   Nt       extends Mad<Id, Np, Nt, Nt, Np>,
+   SelfNode extends Mad<Id, Np, Nt, SelfNode, DualNode>,
+   DualNode extends Mad<Id, Np, Nt, DualNode, SelfNode>
+>
+{
+}