--- old/src/hotspot/share/gc/shared/barrierSetAssembler.cpp	2018-10-31 23:12:45.942698444 +0100
+++ new/src/hotspot/share/gc/shared/barrierSetAssembler.cpp	2018-10-31 23:12:45.789699864 +0100
@@ -26,7 +26,7 @@
 #include "memory/universe.hpp"
 #include "utilities/globalDefinitions.hpp"
 
-bool BarrierSetAssembler::needs_explicit_null_check(intptr_t offset) {
+bool BarrierSetAssembler::needs_explicit_null_check(intptr_t offset) const {
   // Exception handler checks the nmethod's implicit null checks table
   // only when this method returns false.
 #ifdef _LP64