simlegate · October 20, 2014 08:01 · Oct 20, 2014
diff --git a/ref.java b/ref.java
@@ -0,0 +1,15 @@
+class A{
+  public B b;
+
+}
+class B{
+  public A a;
+}
+public class Main{
+    public static void main(String[] args){
+    A a = new A();
+    B b = new B();
+    a.b=b;
+    b.a=a;
+    }
+}