--- old/src/hotspot/share/runtime/vmOperations.cpp	2019-07-19 10:38:38.000000000 -0400
+++ new/src/hotspot/share/runtime/vmOperations.cpp	2019-07-19 10:38:37.000000000 -0400
@@ -523,4 +523,8 @@
 void VM_PrintClassHierarchy::doit() {
   KlassHierarchy::print_class_hierarchy(_out, _print_interfaces, _print_subclasses, _classname);
 }
+
+void VM_PrintClassLayout::doit() {
+  PrintClassLayout::print_class_layout(_out, _class_name);
+}
 #endif