diff -r cdffba164671 -r 3e5d28e6de32 src/hotspot/share/jfr/recorder/checkpoint/types/traceid/jfrTraceId.cpp
--- a/src/hotspot/share/jfr/recorder/checkpoint/types/traceid/jfrTraceId.cpp	Mon Aug 20 10:04:00 2018 +0200
+++ b/src/hotspot/share/jfr/recorder/checkpoint/types/traceid/jfrTraceId.cpp	Mon Aug 20 08:25:57 2018 -0400
@@ -120,7 +120,7 @@
 
 void JfrTraceId::assign(const ClassLoaderData* cld) {
   assert(cld != NULL, "invariant");
-  if (cld->is_anonymous()) {
+  if (cld->is_unsafe_anonymous()) {
     cld->set_trace_id(0);
     return;
   }