--- old/src/share/vm/gc/shared/referenceProcessor.hpp	2015-11-19 15:35:22.526128730 +0100
+++ new/src/share/vm/gc/shared/referenceProcessor.hpp	2015-11-19 15:35:22.406128734 +0100
@@ -364,7 +364,9 @@
   void clear_discovered_references(DiscoveredList& refs_list);
 
   // Calculate the number of jni handles.
-  unsigned int count_jni_refs();
+  size_t count_jni_refs();
+
+  void log_reflist_counts(DiscoveredList ref_lists[], size_t total_count) PRODUCT_RETURN;
 
   // Balances reference queues.
   void balance_queues(DiscoveredList ref_lists[]);