--- old/src/hotspot/share/classfile/classLoader.cpp	2018-06-19 09:43:31.882314077 -0700
+++ new/src/hotspot/share/classfile/classLoader.cpp	2018-06-19 09:43:31.537281536 -0700
@@ -1535,7 +1535,8 @@
 
   oop loader = ik->class_loader();
   char* src = (char*)stream->source();
-  if (src == NULL) {
+  if (src == NULL ||
+      (strcmp(src, "__JVM_DefineClass__") == 0)) {
     if (loader == NULL) {
       // JFR classes
       ik->set_shared_classpath_index(0);