initial version

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/new/CyclicInterfaceInheritance.java b/tests/new/CyclicInterfaceInheritance.java
new file mode 100644
index 000000000..69e27d99a
--- /dev/null
+++ b/tests/new/CyclicInterfaceInheritance.java
@@ -0,0 +1,15 @@
+
+/** @testcase PR#567 no error for cyclic interface inheritance if no classes implement the interfaces */
+public class CyclicInterfaceInheritance {
+    
+  public static void main( String args[] ) {
+      throw new Error("not to be run - error case ");
+  }
+}
+// no bug if any class implements the interfaces
+class C  {
+    void a() { }
+    void b() { }
+}
+interface A extends B { void a(); }  //ERR: A <- B <- A
+interface B extends A { void b(); }  //ERR: B <- A <- B