--- old/agent/src/share/classes/sun/jvm/hotspot/debugger/x86/X86ThreadContext.java	2015-02-11 12:26:57.619936366 +0100
+++ new/agent/src/share/classes/sun/jvm/hotspot/debugger/x86/X86ThreadContext.java	2015-02-11 12:26:57.507931683 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2015, 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
@@ -24,6 +24,8 @@
 
 package sun.jvm.hotspot.debugger.x86;
 
+import java.lang.annotation.Native;
+
 import sun.jvm.hotspot.debugger.*;
 import sun.jvm.hotspot.debugger.cdbg.*;
 
@@ -40,6 +42,9 @@
   // must be present for the SA's stack walking to work): EAX, EBX,
   // ECX, EDX, ESI, EDI, EBP, ESP, and EIP.
 
+  // One instance of the Native annotation is enough to trigger header generation
+  // for this file.
+  @Native 
   public static final int GS = 0;
   public static final int FS = 1;
   public static final int ES = 2;