--- a/src/hotspot/share/ci/ciObjectFactory.hpp	Wed Jul 25 15:38:37 2018 -0400
+++ b/src/hotspot/share/ci/ciObjectFactory.hpp	Wed Jul 25 21:47:40 2018 +0200
@@ -74,7 +74,7 @@
   ciMetadata* create_new_metadata(Metadata* o);
 
   static bool is_equal(NonPermObject* p, oop key) {
-    return p->object()->get_oop() == key;
+    return oopDesc::equals(p->object()->get_oop(), key);
   }
 
   NonPermObject* &find_non_perm(oop key);