*** old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/java/AccessMonitorNode.java	Mon Mar 20 17:40:52 2017
--- new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/java/AccessMonitorNode.java	Mon Mar 20 17:40:52 2017

*** 66,75 ****
--- 66,80 ----
  
      public ValueNode object() {
          return object;
      }
  
+     public void setObject(ValueNode lockedObject) {
+         updateUsages(this.object, lockedObject);
+         this.object = lockedObject;
+     }
+ 
      public MonitorIdNode getMonitorId() {
          return monitorId;
      }
  
      /**