--- a/corba/src/share/classes/com/sun/corba/se/impl/javax/rmi/CORBA/StubDelegateImpl.java	Wed Jul 05 18:58:01 2017 +0200
+++ b/corba/src/share/classes/com/sun/corba/se/impl/javax/rmi/CORBA/StubDelegateImpl.java	Mon Jun 10 17:15:42 2013 +0100
@@ -147,6 +147,14 @@
             return ior.equals( other.ior ) ;
     }
 
+    public int hashCode() {
+        if (ior == null) {
+            return 0;
+        } else {
+            return ior.hashCode();
+        }
+    }
+
     /**
      * Returns a string representation of this stub. Returns the same string
      * for all stubs that represent the same remote object.