--- old/src/hotspot/share/classfile/systemDictionaryShared.hpp	2019-10-10 17:16:31.470004645 -0700
+++ new/src/hotspot/share/classfile/systemDictionaryShared.hpp	2019-10-10 17:16:31.213995457 -0700
@@ -323,6 +323,12 @@
   };
 #endif
 
+  template <typename T>
+  static unsigned int hash_for_shared_dictionary(T* ptr) {
+    assert(ptr > (T*)SharedBaseAddress, "must be");
+    address p = address(ptr) - SharedBaseAddress;
+    return primitive_hash<address>(p);
+  }
 };
 
 #endif // SHARE_CLASSFILE_SYSTEMDICTIONARYSHARED_HPP