--- old/src/hotspot/share/runtime/vmStructs.cpp	2018-10-01 15:59:03.797741082 -0400
+++ new/src/hotspot/share/runtime/vmStructs.cpp	2018-10-01 15:59:03.325807785 -0400
@@ -329,8 +329,8 @@
   nonstatic_field(ObjArrayKlass,               _bottom_klass,                                 Klass*)                                \
   volatile_nonstatic_field(Symbol,             _length_and_refcount,                          unsigned int)                          \
   nonstatic_field(Symbol,                      _identity_hash,                                short)                                 \
-  unchecked_nonstatic_field(Symbol,            _body,                                         sizeof(jbyte)) /* NOTE: no type */     \
-  nonstatic_field(Symbol,                      _body[0],                                      jbyte)                                 \
+  unchecked_nonstatic_field(Symbol,            _body,                                         sizeof(u1)) /* NOTE: no type */        \
+  nonstatic_field(Symbol,                      _body[0],                                      u1)                                    \
   nonstatic_field(TypeArrayKlass,              _max_length,                                   jint)                                  \
                                                                                                                                      \
   /***********************/                                                                                                          \