--- old/src/hotspot/share/runtime/jniHandles.cpp	2018-03-16 09:52:30.547779903 +0100
+++ new/src/hotspot/share/runtime/jniHandles.cpp	2018-03-16 09:52:30.352771579 +0100
@@ -151,7 +151,7 @@
   assert(handle != NULL, "precondition");
   assert(is_jweak(handle), "precondition");
 #if INCLUDE_ALL_GCS
-  if (UseLoadBarrier) {
+  if (UseZGC) {
     oop* ref_addr = jweak_ref_addr(handle);
     return RootAccess<ON_PHANTOM_OOP_REF>::oop_load(ref_addr);
   }