--- old/src/share/vm/gc_implementation/shared/objectCountEventSender.hpp	2019-02-15 19:02:31.931025488 +0300
+++ new/src/share/vm/gc_implementation/shared/objectCountEventSender.hpp	2019-02-15 19:02:31.799030103 +0300
@@ -32,10 +32,17 @@
 #if INCLUDE_SERVICES
 
 class KlassInfoEntry;
-class Ticks;
 
 class ObjectCountEventSender : public AllStatic {
+  static bool _should_send_requestable_event;
+
+  template <typename T>
+  static void send_event_if_enabled(Klass* klass, GCId gc_id, jlong count, julong size, const Ticks& timestamp);
+
  public:
+  static void enable_requestable_event();
+  static void disable_requestable_event();
+
   static void send(const KlassInfoEntry* entry, GCId gc_id, const Ticks& timestamp);
   static bool should_send_event();
 };