diff -r fcad92f425c5 -r 56bf71d64d51 src/hotspot/share/runtime/thread.cpp
--- a/src/hotspot/share/runtime/thread.cpp	Mon Nov 25 14:06:13 2019 +0100
+++ b/src/hotspot/share/runtime/thread.cpp	Mon Nov 25 12:22:13 2019 +0100
@@ -1269,7 +1269,7 @@
 
 NonJavaThread::Iterator::Iterator() :
   _protect_enter(_the_list._protect.enter()),
-  _current(OrderAccess::load_acquire(&_the_list._head))
+  _current(Atomic::load_acquire(&_the_list._head))
 {}
 
 NonJavaThread::Iterator::~Iterator() {
@@ -1278,7 +1278,7 @@
 
 void NonJavaThread::Iterator::step() {
   assert(!end(), "precondition");
-  _current = OrderAccess::load_acquire(&_current->_next);
+  _current = Atomic::load_acquire(&_current->_next);
 }
 
 NonJavaThread::NonJavaThread() : Thread(), _next(NULL) {
@@ -1291,8 +1291,8 @@
   MutexLocker ml(NonJavaThreadsList_lock, Mutex::_no_safepoint_check_flag);
   // Initialize BarrierSet-related data before adding to list.
   BarrierSet::barrier_set()->on_thread_attach(this);
-  OrderAccess::release_store(&_next, _the_list._head);
-  OrderAccess::release_store(&_the_list._head, this);
+  Atomic::release_store(&_next, _the_list._head);
+  Atomic::release_store(&_the_list._head, this);
 }
 
 void NonJavaThread::remove_from_the_list() {