diff -r 6ecca4a9c75f -r f047fae0169c src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
--- a/src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp	Mon Feb 26 16:33:48 2018 +0100
+++ b/src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp	Tue Feb 27 11:45:04 2018 +0100
@@ -4514,7 +4514,7 @@
 
 void MacroAssembler::load_byte_map_base(Register reg) {
   jbyte *byte_map_base =
-    ((CardTableModRefBS*)(Universe::heap()->barrier_set()))->byte_map_base;
+    ((CardTableModRefBS*)(Universe::heap()->barrier_set()))->card_table()->byte_map_base();
 
   if (is_valid_AArch64_address((address)byte_map_base)) {
     // Strictly speaking the byte_map_base isn't an address at all,