--- old/src/hotspot/share/runtime/vmOperations.cpp	2019-05-25 10:46:44.662884225 -0400
+++ new/src/hotspot/share/runtime/vmOperations.cpp	2019-05-25 10:46:43.786884179 -0400
@@ -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"
@@ -471,6 +472,17 @@
   }
 }
 
+bool VM_Exit::doit_prologue() {
+  if (AsyncDeflateIdleMonitors) {
+    // AsyncDeflateIdleMonitors does a special deflation at the VM_Exit
+    // safepoint in order to reduce the in-use monitor population that
+    // is reported ObjectSynchronizer::log_in_use_monitor_details() at
+    // VM exit.
+    ObjectSynchronizer::set_is_special_deflation_requested(true);
+  }
+  return true;
+}
+
 void VM_Exit::doit() {
 
   if (VerifyBeforeExit) {