--- old/src/hotspot/share/runtime/objectMonitor.hpp	2019-07-11 14:36:31.000000000 -0400
+++ new/src/hotspot/share/runtime/objectMonitor.hpp	2019-07-11 14:36:31.000000000 -0400
@@ -249,13 +249,6 @@
     // _ref_count is for indicating that the ObjectMonitor* is in
     // use which is orthogonal to whether the ObjectMonitor itself
     // is in use for a locking operation.
-    return _contentions|_waiters|intptr_t(_owner)|intptr_t(_cxq)|intptr_t(_EntryList);
-  }
-  const char* is_busy_to_string(stringStream* ss);
-
-  // Version of is_busy() that accounts for the special value in
-  // _owner when AsyncDeflateIdleMonitors is enabled.
-  intptr_t is_busy_async() const {
     intptr_t ret_code = _contentions | _waiters | intptr_t(_cxq) | intptr_t(_EntryList);
     if (!AsyncDeflateIdleMonitors) {
       ret_code |= intptr_t(_owner);
@@ -266,10 +259,13 @@
     }
     return ret_code;
   }
+  const char* is_busy_to_string(stringStream* ss);
 
   intptr_t  is_entered(Thread* current) const;
 
   void*     owner() const;  // Returns NULL if DEFLATER_MARKER is observed.
+  // Returns true if owner field == DEFLATER_MARKER and false otherwise.
+  bool      owner_is_DEFLATER_MARKER();
   void      set_owner(void* owner);
 
   jint      waiters() const;