--- old/src/hotspot/share/gc/g1/g1_globals.hpp	2018-10-08 18:33:24.000000000 -0400
+++ new/src/hotspot/share/gc/g1/g1_globals.hpp	2018-10-08 18:33:24.000000000 -0400
@@ -302,6 +302,10 @@
           "Verify the code root lists attached to each heap region.")       \
                                                                             \
   develop(bool, G1VerifyBitmaps, false,                                     \
-          "Verifies the consistency of the marking bitmaps")
+          "Verifies the consistency of the marking bitmaps")                \
+                                                                            \
+  product(bool, G1UseLegacyMonitoring, false,                               \
+          "Use legacy GarbageCollector/MemoryPool MXBean and jstat "        \
+          "counter definitions")
 
 #endif // SHARE_VM_GC_G1_G1_GLOBALS_HPP