--- old/src/hotspot/share/runtime/synchronizer.cpp	2019-04-25 11:54:36.980575246 +0200
+++ new/src/hotspot/share/runtime/synchronizer.cpp	2019-04-25 11:54:36.259550963 +0200
@@ -1314,7 +1314,7 @@
   // Inflate mutates the heap ...
   // Relaxing assertion for bug 6320749.
   assert(Universe::verify_in_progress() ||
-         !SafepointSynchronize::is_at_safepoint(), "invariant");
+         !Universe::heap()->is_gc_active(), "invariant");
 
   EventJavaMonitorInflate event;
 
@@ -1443,7 +1443,7 @@
       // to avoid false sharing on MP systems ...
       OM_PERFDATA_OP(Inflations, inc());
       if (log_is_enabled(Trace, monitorinflation)) {
-        ResourceMark rm(Self);
+        ResourceMark rm;
         lsh.print_cr("inflate(has_locker): object=" INTPTR_FORMAT ", mark="
                      INTPTR_FORMAT ", type='%s'", p2i(object),
                      p2i(object->mark()), object->klass()->external_name());
@@ -1493,7 +1493,7 @@
     // cache lines to avoid false sharing on MP systems ...
     OM_PERFDATA_OP(Inflations, inc());
     if (log_is_enabled(Trace, monitorinflation)) {
-      ResourceMark rm(Self);
+      ResourceMark rm;
       lsh.print_cr("inflate(neutral): object=" INTPTR_FORMAT ", mark="
                    INTPTR_FORMAT ", type='%s'", p2i(object),
                    p2i(object->mark()), object->klass()->external_name());