--- a/src/hotspot/share/oops/oopsHierarchy.hpp	Fri Sep 13 07:43:59 2019 +0200
+++ b/src/hotspot/share/oops/oopsHierarchy.hpp	Tue Sep 17 09:51:02 2019 +0200
@@ -100,9 +100,9 @@
 
   // General access
   oopDesc*  operator->() const        { return obj(); }
-  bool operator==(const oop o) const;
+  bool operator==(const oop o) const  { return obj() == o.obj(); }
   bool operator==(void *p) const      { return obj() == p; }
-  bool operator!=(const volatile oop o) const;
+  bool operator!=(const volatile oop o) const { return obj() != o.obj(); }
   bool operator!=(void *p) const      { return obj() != p; }
 
   // Assignment