--- old/src/hotspot/share/classfile/classLoaderDataGraph.cpp	2019-07-30 16:02:27.986460100 -0400
+++ new/src/hotspot/share/classfile/classLoaderDataGraph.cpp	2019-07-30 16:02:27.758460108 -0400
@@ -309,8 +309,7 @@
                             // unless verifying at a safepoint.
 
 public:
-  ClassLoaderDataGraphIterator() : _next(ClassLoaderDataGraph::_head),
-     _nsv(true, !SafepointSynchronize::is_at_safepoint()) {
+  ClassLoaderDataGraphIterator() : _next(ClassLoaderDataGraph::_head) {
     _thread = Thread::current();
     assert_locked_or_safepoint(ClassLoaderDataGraph_lock);
   }