code: public static String objectId(Object o)
      {
          return (o == null) ? "0x0" : o.getClass().getName() + "@" + Integer.toHexString(o.hashCode());
      }
docs: A string that identifies an object instance within WAS messages and heap dumps.
  
  @param o The Object instance.
  @return the class name of bean concatenated with its hashcode in hexadecimal.