--- old/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/z/ZGlobals.java	2019-02-15 20:10:31.023531889 +0100
+++ new/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/z/ZGlobals.java	2019-02-15 20:10:30.495531893 +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
@@ -54,6 +54,7 @@
     // Pointer part of address
     public static long ZAddressOffsetBits;
     public static long ZAddressOffsetMask;
+    public static long ZAddressOffsetMax;
 
     // Address space start/end/size
     public static long ZAddressSpaceStart;
@@ -84,6 +85,7 @@
 
         ZAddressOffsetBits = db.lookupLongConstant("ZAddressOffsetBits").longValue();
         ZAddressOffsetMask = db.lookupLongConstant("ZAddressOffsetMask").longValue();
+        ZAddressOffsetMax  = db.lookupLongConstant("ZAddressOffsetMax").longValue();
 
         ZAddressSpaceStart = db.lookupLongConstant("ZAddressSpaceStart").longValue();
     }
@@ -96,6 +98,10 @@
         return instance().ZGlobalPhase();
     }
 
+    public static int ZGlobalSeqNum() {
+        return instance().ZGlobalSeqNum();
+    }
+
     public static long ZAddressGoodMask() {
         return instance().ZAddressGoodMask();
     }