--- old/src/hotspot/share/oops/klass.hpp	2020-03-26 15:59:27.000000000 -0700
+++ new/src/hotspot/share/oops/klass.hpp	2020-03-26 15:59:26.000000000 -0700
@@ -615,6 +615,10 @@
   void set_has_miranda_methods()        { _access_flags.set_has_miranda_methods(); }
   bool is_shared() const                { return access_flags().is_shared_class(); } // shadows MetaspaceObj::is_shared)()
   void set_is_shared()                  { _access_flags.set_is_shared_class(); }
+  bool is_hidden() const                { return access_flags().is_hidden_class(); }
+  void set_is_hidden()                  { _access_flags.set_is_hidden_class(); }
+  bool is_hidden_weak() const           { return access_flags().is_hidden_class() &&
+                                          class_loader_data()->has_class_mirror_holder(); }
 
   bool is_cloneable() const;
   void set_is_cloneable();