src/hotspot/share/classfile/classLoaderDataGraph.cpp

@@ -578,11 +578,11 @@
     data = data->next();
   }
 }
 
 void ClassLoaderDataGraph::purge() {
-  assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!");
+  assert_locked_or_safepoint(ClassLoaderDataGraph_lock);
   ClassLoaderData* list = _unloading;
   _unloading = NULL;
   ClassLoaderData* next = list;
   bool classes_unloaded = false;
   while (next != NULL) {