--- a/src/java.base/share/classes/sun/security/ssl/SSLExtension.java	Thu Oct 17 20:27:44 2019 +0100
+++ b/src/java.base/share/classes/sun/security/ssl/SSLExtension.java	Thu Oct 17 20:53:35 2019 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2019, 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
@@ -309,8 +309,28 @@
     // extensions defined in RFC 7924
     CACHED_INFO             (0x0019, "cached_info"),
 
-    // extensions defined in RFC 4507/5077
-    SESSION_TICKET          (0x0023, "session_ticket"),
+    // extensions defined in RFC 5077
+    CH_SESSION_TICKET       (0x0023, "session_ticket",
+            SSLHandshake.CLIENT_HELLO,
+            ProtocolVersion.PROTOCOLS_10_12,
+            SessionTicketExtension.chNetworkProducer,
+            SessionTicketExtension.chOnLoadConsumer,
+            null,
+            null,
+            null,
+            SessionTicketExtension.steStringizer),
+            //null),
+
+    SH_SESSION_TICKET       (0x0023, "session_ticket",
+            SSLHandshake.SERVER_HELLO,
+            ProtocolVersion.PROTOCOLS_10_12,
+            SessionTicketExtension.shNetworkProducer,
+            SessionTicketExtension.shOnLoadConsumer,
+            null,
+            null,
+            null,
+            SessionTicketExtension.steStringizer),
+            //null),
 
     // extensions defined in TLS 1.3
     CH_EARLY_DATA           (0x002A, "early_data"),
@@ -464,6 +484,25 @@
     final SSLHandshake handshakeType;
     final String name;
     final ProtocolVersion[] supportedProtocols;
+
+    /*
+     * networkProducer: produces outbound handshake data.
+     *
+     * onLoadConsumer:  parses inbound data.  It may not be appropriate
+     *                  to act until all of the message inputs have
+     *                  been parsed.  (e.g. parsing keyShares and choosing
+     *                  a local value without having seen the SupportedGroups
+     *                  extension.)
+     *
+     * onLoadAbsence:   if a missing message needs special handling
+     *                  during the load phase.
+     *
+     * onTradeConsumer: act on the parsed message once all inbound data has
+     *                  been traded and parsed.
+     *
+     * onTradeAbsence:  if a missing message needs special handling
+     *                  during the trade phase.
+     */
     final HandshakeProducer networkProducer;
     final ExtensionConsumer onLoadConsumer;
     final HandshakeAbsence  onLoadAbsence;