--- old/src/java.rmi/share/classes/java/rmi/activation/ActivationID.java	2018-07-20 14:09:23.256394891 -0700
+++ new/src/java.rmi/share/classes/java/rmi/activation/ActivationID.java	2018-07-20 14:09:22.900394881 -0700
@@ -225,7 +225,7 @@
      * specification.
      **/
     private void writeObject(ObjectOutputStream out)
-        throws IOException, ClassNotFoundException
+        throws IOException
     {
         out.writeObject(uid);