--- old/src/hotspot/share/memory/heapInspection.hpp	2019-08-07 12:43:44.000000000 -0400
+++ new/src/hotspot/share/memory/heapInspection.hpp	2019-08-07 12:43:44.000000000 -0400
@@ -341,6 +341,11 @@
   void sort();
 };
 
+class PrintClassLayout : AllStatic {
+ public:
+  static void print_class_layout(outputStream* st, char* classname);
+};
+
 #endif // INCLUDE_SERVICES
 
 // These declarations are needed since the declaration of KlassInfoTable and