--- old/src/hotspot/share/gc/shared/gcName.hpp	2020-01-17 17:14:23.072116540 +0100
+++ new/src/hotspot/share/gc/shared/gcName.hpp	2020-01-17 17:14:22.972116545 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2018, 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
@@ -39,6 +39,7 @@
   G1Old,
   G1Full,
   Z,
+  Shenandoah,
   NA,
   GCNameEndSentinel
 };
@@ -58,6 +59,7 @@
       case G1Old: return "G1Old";
       case G1Full: return "G1Full";
       case Z: return "Z";
+      case Shenandoah: return "Shenandoah";
       case NA: return "N/A";
       default: ShouldNotReachHere(); return NULL;
     }