diff -r fcad92f425c5 -r 56bf71d64d51 src/hotspot/share/runtime/synchronizer.cpp
--- a/src/hotspot/share/runtime/synchronizer.cpp	Mon Nov 25 14:06:13 2019 +0100
+++ b/src/hotspot/share/runtime/synchronizer.cpp	Mon Nov 25 12:22:13 2019 +0100
@@ -889,7 +889,7 @@
 // Visitors ...
 
 void ObjectSynchronizer::monitors_iterate(MonitorClosure* closure) {
-  PaddedObjectMonitor* block = OrderAccess::load_acquire(&g_block_list);
+  PaddedObjectMonitor* block = Atomic::load_acquire(&g_block_list);
   while (block != NULL) {
     assert(block->object() == CHAINMARKER, "must be a block header");
     for (int i = _BLOCKSIZE - 1; i > 0; i--) {
@@ -1118,7 +1118,7 @@
     temp[0]._next_om = g_block_list;
     // There are lock-free uses of g_block_list so make sure that
     // the previous stores happen before we update g_block_list.
-    OrderAccess::release_store(&g_block_list, temp);
+    Atomic::release_store(&g_block_list, temp);
 
     // Add the new string of ObjectMonitors to the global free list
     temp[_BLOCKSIZE - 1]._next_om = g_free_list;
@@ -2169,7 +2169,7 @@
 // the list of extant blocks without taking a lock.
 
 int ObjectSynchronizer::verify_objmon_isinpool(ObjectMonitor *monitor) {
-  PaddedObjectMonitor* block = OrderAccess::load_acquire(&g_block_list);
+  PaddedObjectMonitor* block = Atomic::load_acquire(&g_block_list);
   while (block != NULL) {
     assert(block->object() == CHAINMARKER, "must be a block header");
     if (monitor > &block[0] && monitor < &block[_BLOCKSIZE]) {