diff -r 78aa7484c722 -r 88502b1cf76f src/hotspot/share/gc/z/zBarrierSetNMethod.hpp
--- a/src/hotspot/share/gc/z/zBarrierSetNMethod.hpp	Tue Nov 26 14:33:56 2019 -0500
+++ b/src/hotspot/share/gc/z/zBarrierSetNMethod.hpp	Mon Sep 09 11:43:16 2019 -0400
@@ -31,11 +31,11 @@
 
 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