8263105: security-libs doclint cleanup

Reviewed-by: iris, darcy, dfuchs, mullan

src/java.base/share/classes/java/security/Permissions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2021, 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
@@ -577,11 +577,11 @@ implements Serializable
     };
 
     /**
-     * @serialData Default fields.
-     */
-    /*
      * Writes the contents of the permsMap field out as a Hashtable for
      * serialization compatibility with earlier releases.
+     *
+     * @param  out the {@code ObjectOutputStream} to which data is written
+     * @throws IOException if an I/O error occurs
      */
     @java.io.Serial
     private void writeObject(ObjectOutputStream out) throws IOException {
@@ -598,9 +598,13 @@ implements Serializable
         out.writeFields();
     }
 
-    /*
+    /**
      * Reads in a Hashtable of Permission/Permission and saves them in the
      * permsMap field.
+     *
+     * @param  in the {@code ObjectInputStream} from which data is read
+     * @throws IOException if an I/O error occurs
+     * @throws ClassNotFoundException if a serialized class cannot be loaded
      */
     @java.io.Serial
     private void readObject(ObjectInputStream in) throws IOException,