--- a/src/hotspot/share/gc/shared/collectedHeap.hpp	Thu Nov 09 11:13:50 2017 -0800
+++ b/src/hotspot/share/gc/shared/collectedHeap.hpp	Wed Oct 25 10:05:17 2017 +0200
@@ -81,9 +81,10 @@
 //
 // CollectedHeap
 //   GenCollectedHeap
+//     SerialHeap
+//     CMSHeap
 //   G1CollectedHeap
 //   ParallelScavengeHeap
-//   CMSHeap
 //
 class CollectedHeap : public CHeapObj<mtInternal> {
   friend class VMStructs;
@@ -193,7 +194,7 @@
 
  public:
   enum Name {
-    GenCollectedHeap,
+    SerialHeap,
     ParallelScavengeHeap,
     G1CollectedHeap,
     CMSHeap