--- old/src/hotspot/share/gc/g1/g1CollectedHeap.cpp	Mon Oct  1 16:28:52 2018
+++ new/src/hotspot/share/gc/g1/g1CollectedHeap.cpp	Mon Oct  1 16:28:51 2018
@@ -1046,6 +1046,9 @@
   abort_refinement();
   resize_if_necessary_after_full_collection();
 
+  // Purge code root memory
+  purge_code_root_memory();
+
   // Rebuild the strong code root lists for each region
   rebuild_strong_code_roots();