--- old/src/hotspot/share/runtime/vmOperations.cpp	2020-05-26 17:42:46.000000000 -0400
+++ new/src/hotspot/share/runtime/vmOperations.cpp	2020-05-26 17:42:46.000000000 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -41,6 +41,7 @@
 #include "runtime/frame.inline.hpp"
 #include "runtime/interfaceSupport.inline.hpp"
 #include "runtime/sweeper.hpp"
+#include "runtime/synchronizer.hpp"
 #include "runtime/thread.inline.hpp"
 #include "runtime/threadSMR.inline.hpp"
 #include "runtime/vmOperations.hpp"
@@ -433,6 +434,17 @@
   }
 }
 
+bool VM_Exit::doit_prologue() {
+  if (AsyncDeflateIdleMonitors && log_is_enabled(Info, monitorinflation)) {
+    // AsyncDeflateIdleMonitors does a special deflation at the VM_Exit
+    // safepoint in order to reduce the in-use monitor population that
+    // is reported by ObjectSynchronizer::log_in_use_monitor_details()
+    // at VM exit.
+    ObjectSynchronizer::set_is_special_deflation_requested(true);
+  }
+  return true;
+}
+
 void VM_Exit::doit() {
 
   if (VerifyBeforeExit) {