--- old/src/hotspot/share/gc/parallel/psMarkSweep.cpp 2019-08-02 08:06:08.396381601 +0200 +++ new/src/hotspot/share/gc/parallel/psMarkSweep.cpp 2019-08-02 08:06:07.908380510 +0200 @@ -251,7 +251,7 @@ // Delete metaspaces for unloaded class loaders and clean up loader_data graph ClassLoaderDataGraph::purge(); - MetaspaceUtils::verify_metrics(); + DEBUG_ONLY(MetaspaceUtils::verify(false);) BiasedLocking::restore_marks(); heap->prune_scavengable_nmethods();