diff a/src/hotspot/share/gc/z/zBarrierSetNMethod.hpp b/src/hotspot/share/gc/z/zBarrierSetNMethod.hpp
--- a/src/hotspot/share/gc/z/zBarrierSetNMethod.hpp
+++ b/src/hotspot/share/gc/z/zBarrierSetNMethod.hpp
@@ -29,13 +29,13 @@
 
 class nmethod;
 
 class ZBarrierSetNMethod : public BarrierSetNMethod {
 protected:
-  virtual int disarmed_value() const;
   virtual bool nmethod_entry_barrier(nmethod* nm);
 
 public:
   virtual ByteSize thread_disarmed_offset() const;
+  virtual int* disarmed_value_address() const;
 };
 
 #endif // SHARE_GC_Z_ZBARRIERSETNMETHOD_HPP