diff -r d068b1e534de -r 9b67dd88a931 src/hotspot/share/gc/g1/g1RemSet.cpp
--- a/src/hotspot/share/gc/g1/g1RemSet.cpp	Wed Oct 16 16:54:56 2019 +0200
+++ b/src/hotspot/share/gc/g1/g1RemSet.cpp	Mon Oct 14 18:48:10 2019 -0700
@@ -487,7 +487,7 @@
                    G1CardTable* ct,
                    G1HotCardCache* hot_card_cache) :
   _scan_state(new G1RemSetScanState()),
-  _prev_period_summary(),
+  _prev_period_summary(false),
   _g1h(g1h),
   _ct(ct),
   _g1p(_g1h->policy()),
@@ -1404,7 +1404,7 @@
   if ((G1SummarizeRSetStatsPeriod > 0) && log_is_enabled(Trace, gc, remset) &&
       (period_count % G1SummarizeRSetStatsPeriod == 0)) {
 
-    G1RemSetSummary current(this);
+    G1RemSetSummary current;
     _prev_period_summary.subtract_from(&current);
 
     Log(gc, remset) log;
@@ -1421,7 +1421,7 @@
   Log(gc, remset, exit) log;
   if (log.is_trace()) {
     log.trace(" Cumulative RS summary");
-    G1RemSetSummary current(this);
+    G1RemSetSummary current;
     ResourceMark rm;
     LogStream ls(log.trace());
     current.print_on(&ls);