--- old/src/hotspot/share/runtime/vmStructs.cpp	2019-03-11 14:27:24.614354070 +0100
+++ new/src/hotspot/share/runtime/vmStructs.cpp	2019-03-11 14:27:24.398354073 +0100
@@ -235,6 +235,7 @@
   nonstatic_field(InstanceKlass,               _static_oop_field_count,                       u2)                                    \
   nonstatic_field(InstanceKlass,               _nonstatic_oop_map_size,                       int)                                   \
   nonstatic_field(InstanceKlass,               _is_marked_dependent,                          bool)                                  \
+  nonstatic_field(InstanceKlass,               _extra_flags,                                  u1)                                    \
   nonstatic_field(InstanceKlass,               _misc_flags,                                   u2)                                    \
   nonstatic_field(InstanceKlass,               _minor_version,                                u2)                                    \
   nonstatic_field(InstanceKlass,               _major_version,                                u2)                                    \