--- old/src/java.base/share/classes/sun/security/ssl/Plaintext.java	Thu Oct 13 14:03:58 2016
+++ new/src/java.base/share/classes/sun/security/ssl/Plaintext.java	Thu Oct 13 14:03:57 2016
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2016, 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
@@ -38,7 +38,7 @@
     byte            majorVersion;
     byte            minorVersion;
     int             recordEpoch;    // incremented on every cipher state change
-    long            recordSN;
+    long            recordSN;       // contains epcoh number (epoch | sequence)
     ByteBuffer      fragment;       // null if need to be reassembled
 
     HandshakeStatus handshakeStatus;    // null if not used or not handshaking