*** old/agent/src/share/classes/sun/jvm/hotspot/opto/JVMState.java	Fri Dec 27 17:10:15 2013
--- new/agent/src/share/classes/sun/jvm/hotspot/opto/JVMState.java	Fri Dec 27 17:10:15 2013

*** 86,95 ****
--- 86,99 ----
  
    public int bci() {
      return (int)bciField.getValue(getAddress());
    }
  
+   public int depth() {
+     return (int)depthField.getValue(getAddress());
+   }
+ 
    public JVMState caller() {
      return create(callerField.getValue(getAddress()));
    }
  
    public void dumpSpec(PrintStream out) {