--- old/src/hotspot/share/gc/g1/g1SATBCardTableModRefBS.hpp	2018-02-15 12:33:07.562536332 +0100
+++ new/src/hotspot/share/gc/g1/g1SATBCardTableModRefBS.hpp	2018-02-15 12:33:07.316525736 +0100
@@ -154,7 +154,8 @@
   void write_ref_field_post(T* field, oop new_val);
   void write_ref_field_post_slow(volatile jbyte* byte);
 
-  virtual void flush_deferred_barriers(JavaThread* thread);
+  virtual void on_thread_attach(JavaThread* thread);
+  virtual void on_thread_detach(JavaThread* thread);
 
   virtual bool card_mark_must_follow_store() const {
     return true;