src/hotspot/share/runtime/objectMonitor.inline.hpp

@@ -34,10 +34,15 @@
 
 inline markOop ObjectMonitor::header() const {
   return _header;
 }
 
+inline volatile markOop* ObjectMonitor::header_addr() {
+  assert((intptr_t)this == (intptr_t)&_header, "sync code expects this");
+  return &_header;
+}
+
 inline void ObjectMonitor::set_header(markOop hdr) {
   _header = hdr;
 }
 
 inline jint ObjectMonitor::count() const {