diff -r 1c485b79de81 -r d7698e6c5f51 jdk/src/share/classes/sun/security/pkcs11/P11Key.java
--- a/jdk/src/share/classes/sun/security/pkcs11/P11Key.java	Wed Jan 11 08:14:47 2012 -0800
+++ b/jdk/src/share/classes/sun/security/pkcs11/P11Key.java	Thu Jan 12 03:39:37 2012 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2012, 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
@@ -46,6 +46,7 @@
 import static sun.security.pkcs11.wrapper.PKCS11Constants.*;
 
 import sun.security.util.DerValue;
+import sun.security.util.Length;
 
 /**
  * Key implementation classes.
@@ -61,7 +62,7 @@
  * @author  Andreas Sterbenz
  * @since   1.5
  */
-abstract class P11Key implements Key {
+abstract class P11Key implements Key, Length {
 
     private final static String PUBLIC = "public";
     private final static String PRIVATE = "private";
@@ -212,7 +213,11 @@
         return s1;
     }
 
-    int keyLength() {
+    /**
+     * Return bit length of the key.
+     */
+    @Override
+    public int length() {
         return keyLength;
     }