diff -r 65cad575ace3 -r bdf136b8ae0e src/hotspot/share/gc/parallel/psParallelCompact.cpp
--- a/src/hotspot/share/gc/parallel/psParallelCompact.cpp	Tue Sep 10 14:52:53 2019 +0800
+++ b/src/hotspot/share/gc/parallel/psParallelCompact.cpp	Tue Sep 10 09:24:05 2019 +0200
@@ -1059,7 +1059,7 @@
 
   // Delete metaspaces for unloaded class loaders and clean up loader_data graph
   ClassLoaderDataGraph::purge();
-  MetaspaceUtils::verify_metrics();
+  DEBUG_ONLY(MetaspaceUtils::verify(false);)
 
   heap->prune_scavengable_nmethods();