--- old/src/hotspot/share/gc/serial/serialHeap.hpp	2017-11-28 22:17:28.557525645 +0100
+++ new/src/hotspot/share/gc/serial/serialHeap.hpp	2017-11-28 22:17:28.153530426 +0100
@@ -33,10 +33,13 @@
 class MemoryPool;
 
 class SerialHeap : public GenCollectedHeap {
+private:
   MemoryPool* _eden_pool;
   MemoryPool* _survivor_pool;
   MemoryPool* _old_pool;
 
+  virtual void initialize_serviceability();
+
 protected:
   virtual void check_gen_kinds();
 
@@ -51,8 +54,6 @@
     return "Serial";
   }
 
-  virtual jint initialize();
-
   virtual GrowableArray<GCMemoryManager*> memory_managers();
   virtual GrowableArray<MemoryPool*> memory_pools();