diff -r 2c3cc4b01880 -r c16ac7a2eba4 src/hotspot/share/jfr/metadata/jfrSerializer.hpp
--- a/src/hotspot/share/jfr/metadata/jfrSerializer.hpp	Wed Oct 30 16:14:56 2019 +0100
+++ b/src/hotspot/share/jfr/metadata/jfrSerializer.hpp	Wed Oct 30 19:43:52 2019 +0100
@@ -70,7 +70,8 @@
 class JfrSerializer : public CHeapObj<mtTracing> {
  public:
   virtual ~JfrSerializer() {}
-  static bool register_serializer(JfrTypeId id, bool require_safepoint, bool permit_cache, JfrSerializer* serializer);
+  virtual void on_rotation() {}
+  static bool register_serializer(JfrTypeId id, bool permit_cache, JfrSerializer* serializer);
   virtual void serialize(JfrCheckpointWriter& writer) = 0;
 };