--- old/src/share/vm/gc/shared/gcId.cpp	2015-12-09 12:20:53.240799989 +0100
+++ new/src/share/vm/gc/shared/gcId.cpp	2015-12-09 12:20:53.064799116 +0100
@@ -38,10 +38,6 @@
   return _next_id++;
 }
 
-const uint GCId::peek() {
-  return _next_id;
-}
-
 const uint GCId::current() {
   assert(currentNamedthread()->gc_id() != undefined(), "Using undefined GC id.");
   return current_raw();