--- old/src/hotspot/share/utilities/concurrentHashTable.inline.hpp	2018-07-06 15:09:06.624884875 -0400
+++ new/src/hotspot/share/utilities/concurrentHashTable.inline.hpp	2018-07-06 15:09:06.400884864 -0400
@@ -263,8 +263,11 @@
       Prefetch::read(*pref->value(), 0);
       pref = pref->next();
     }
-    if (next->next() != NULL) {
-      Prefetch::read(*next->next()->value(), 0);
+    // Read next() Node* once.  May be racing with a thread moving the next
+    // pointers.
+    Node* next_pref = next->next();
+    if (next_pref != NULL) {
+      Prefetch::read(*next_pref->value(), 0);
     }
     if (eval_f(next->value())) {
       return true;