--- old/src/share/vm/runtime/synchronizer.cpp	2019-01-28 17:44:37.000000000 +0800
+++ new/src/share/vm/runtime/synchronizer.cpp	2019-01-28 17:44:37.000000000 +0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2019, 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
@@ -1193,6 +1193,19 @@
 // Note that we could encounter some performance loss through false-sharing as
 // multiple locks occupy the same $ line.  Padding might be appropriate.
 
+static void post_monitor_inflate_event(EventJavaMonitorInflate& event,
+                                       const oop obj,
+                                       //const ObjectSynchronizer::InflateCause cause) {
+                                       // unsupport cause
+                                       const u1 cause) {
+#if INCLUDE_TRACE
+  assert(event.should_commit(), "check outside");
+  event.set_monitorClass(obj->klass());
+  event.set_address((TYPE_ADDRESS)(uintptr_t)(void*)obj);
+  event.set_cause((u1)cause);
+  event.commit();
+#endif
+}
 
 ObjectMonitor * ATTR ObjectSynchronizer::inflate (Thread * Self, oop object) {
   // Inflate mutates the heap ...
@@ -1200,6 +1213,8 @@
   assert (Universe::verify_in_progress() ||
           !SafepointSynchronize::is_at_safepoint(), "invariant") ;
 
+  EventJavaMonitorInflate event;
+
   for (;;) {
       const markOop mark = object->mark() ;
       assert (!mark->has_bias_pattern(), "invariant") ;
@@ -1330,6 +1345,9 @@
                 object->klass()->external_name());
             }
           }
+          if (event.should_commit()) {
+            post_monitor_inflate_event(event, object, (u1)0);
+          }
           return m ;
       }
 
@@ -1380,6 +1398,9 @@
             object->klass()->external_name());
         }
       }
+      if (event.should_commit()) {
+        post_monitor_inflate_event(event, object, (u1)0);
+      }
       return m ;
   }
 }