--- old/src/hotspot/cpu/aarch64/gc/shared/barrierSetAssembler_aarch64.hpp	2018-10-31 23:12:42.449730877 +0100
+++ new/src/hotspot/cpu/aarch64/gc/shared/barrierSetAssembler_aarch64.hpp	2018-10-31 23:12:42.281732437 +0100
@@ -73,7 +73,7 @@
   );
   virtual void barrier_stubs_init() {}
 
-  virtual bool needs_explicit_null_check(intptr_t offset);
+  virtual bool needs_explicit_null_check(intptr_t offset) const;
 };
 
 #endif // CPU_AARCH64_GC_SHARED_BARRIERSETASSEMBLER_AARCH64_HPP