--- old/src/hotspot/share/gc/g1/heapRegion.cpp	2019-11-21 15:05:58.981866697 +0100
+++ new/src/hotspot/share/gc/g1/heapRegion.cpp	2019-11-21 15:05:58.638856081 +0100
@@ -254,7 +254,7 @@
   _prev_top_at_mark_start(NULL), _next_top_at_mark_start(NULL),
   _prev_marked_bytes(0), _next_marked_bytes(0),
   _young_index_in_cset(-1),
-  _surv_rate_group(NULL), _age_index(SurvRateGroup::InvalidAgeIndex), _gc_efficiency(0.0),
+  _surv_rate_group(NULL), _age_index(G1SurvRateGroup::InvalidAgeIndex), _gc_efficiency(0.0),
   _node_index(G1NUMA::UnknownNodeIndex)
 {
   assert(Universe::on_page_boundary(mr.start()) && Universe::on_page_boundary(mr.end()),