diff a/src/java.rmi/share/doc/stub/java/rmi/activation/ActivationGroup_Stub.java b/src/java.rmi/share/classes/java/rmi/activation/ActivationGroup_Stub.java
--- a/src/java.rmi/share/doc/stub/java/rmi/activation/ActivationGroup_Stub.java
+++ b/src/java.rmi/share/classes/java/rmi/activation/ActivationGroup_Stub.java
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
@@ -23,58 +23,81 @@
  * questions.
  */
 
 package java.rmi.activation;
 
+import java.rmi.Remote;
+import java.rmi.RemoteException;
+import java.rmi.server.RemoteObject;
+
 /**
- * <code>ActivationGroup_Stub</code> is a stub class
- * for the subclasses of <code>java.rmi.activation.ActivationGroup</code>
- * that are exported as a <code>java.rmi.server.UnicastRemoteObject</code>.
+ * {@code ActivationGroup_Stub} is a stub class for the subclasses of {@code java.rmi.activation.ActivationGroup}
+ * that are exported as a {@code java.rmi.server.UnicastRemoteObject}.
  *
- * @since       1.2
+ * @since 1.2
  */
+@SuppressWarnings({"rawtypes", "unchecked", "deprecation"})
 public final class ActivationGroup_Stub
-    extends java.rmi.server.RemoteStub
-    implements java.rmi.activation.ActivationInstantiator, java.rmi.Remote
-{
-    /**
-     * Constructs a stub for the <code>ActivationGroup</code> class.  It
-     * invokes the superclass <code>RemoteStub(RemoteRef)</code>
-     * constructor with its argument, <code>ref</code>.
-     *
-     * @param   ref a remote ref
-     */
-    public ActivationGroup_Stub(java.rmi.server.RemoteRef ref) {
+        extends java.rmi.server.RemoteStub
+        implements ActivationInstantiator, Remote {
+    @java.io.Serial
+    private static final long serialVersionUID = 2;
+
+    private static java.lang.reflect.Method $method_newInstance_0;
+
+    static {
+        try {
+            $method_newInstance_0 =
+                    ActivationInstantiator.class.getMethod("newInstance",
+                            new java.lang.Class<?>[] {ActivationID.class, ActivationDesc.class});
+        } catch (java.lang.NoSuchMethodException e) {
+            throw new java.lang.NoSuchMethodError(
+                    "stub class initialization failed");
+        }
     }
 
     /**
-     * Stub method for <code>ActivationGroup.newInstance</code>.  Invokes
-     * the <code>invoke</code> method on this instance's
-     * <code>RemoteObject.ref</code> field, with <code>this</code> as the
-     * first argument, a two-element <code>Object[]</code> as the second
-     * argument (with <code>id</code> as the first element and
-     * <code>desc</code> as the second element), and -5274445189091581345L
+     * Constructs a stub for the {@code ActivationGroup} class.
+     * It invokes the superclass {@code RemoteStub(RemoteRef)}
+     * constructor with its argument, {@code ref}.
+     *
+     * @param ref a remote ref
+     */
+    public ActivationGroup_Stub(java.rmi.server.RemoteRef ref) {
+        super(ref);
+    }
+
+    /**
+     * Stub method for {@code ActivationGroup.newInstance}.  Invokes
+     * the {@code invoke} method on this instance's
+     * {@code RemoteObject.ref} field, with {@code this} as the
+     * first argument, a two-element {@code Object[]} as the second
+     * argument (with {@code id} as the first element and
+     * {@code desc} as the second element), and -5274445189091581345L
      * as the third argument, and returns the result.  If that invocation
-     * throws a <code>RuntimeException</code>, <code>RemoteException</code>,
-     * or an <code>ActivationException</code>, then that exception is
+     * throws a {@code RuntimeException}, {@code RemoteException},
+     * or an {@code ActivationException}, then that exception is
      * thrown to the caller.  If that invocation throws any other
-     * <code>java.lang.Exception</code>, then a
-     * <code>java.rmi.UnexpectedException</code> is thrown to the caller
+     * {@code java.lang.Exception}, then a
+     * {@code java.rmi.UnexpectedException} is thrown to the caller
      * with the original exception as the cause.
      *
-     * @param   id an activation identifier
-     * @param   desc an activation descriptor
-     * @return  the result of the invocation
-     * @throws  java.rmi.RemoteException if invocation results in
-     *          a <code>RemoteException</code>
-     * @throws  java.rmi.activation.ActivationException if invocation
-     *          results in an <code>ActivationException</code>
+     * @param id   an activation identifier
+     * @param desc an activation descriptor
+     * @return the result of the invocation
+     * @throws RemoteException if invocation results in a {@code RemoteException}
+     * @throws ActivationException      if invocation results in an {@code ActivationException}
      */
-    public java.rmi.MarshalledObject newInstance(
-                                java.rmi.activation.ActivationID id,
-                                java.rmi.activation.ActivationDesc desc)
-        throws java.rmi.RemoteException,
-            java.rmi.activation.ActivationException
-    {
-        return null;
+    public java.rmi.MarshalledObject newInstance(ActivationID id,
+                                                                         ActivationDesc desc)
+            throws java.rmi.RemoteException, ActivationException {
+        try {
+            Object $result = ref.invoke(this, $method_newInstance_0,
+                    new java.lang.Object[]{id, desc}, -5274445189091581345L);
+            return ((java.rmi.MarshalledObject) $result);
+        } catch (java.lang.RuntimeException | java.rmi.RemoteException | ActivationException e) {
+            throw e;
+        } catch (java.lang.Exception e) {
+            throw new java.rmi.UnexpectedException("undeclared checked exception", e);
+        }
     }
 }