[RESOLVED] override protected getter?

[jAQUAN]

I have 3 classes set up. An abstract, a concrete and a utility that needs access to the concretes getter. When I try to access the property of the concrete from within the utility it throws an error.

//abstract

package{
  import flash.errors.IllegalOperationError;
  class{
    protected function get left():Number{
      throw new IllegalOperationError("Abstract method: must be overridden in a subclass");
    }
  }
} 

//concrete

package{
  class extends abstract{
    override protected function get left():Number{
      return someVal;
    }
  }
} 

//utility

package{
  class utility{
    private var concrete:abstract;
    public function utility(concreteClass:abstract){
      this.concrete = concreteClass;
      init();
    }
    private class init():void{
      trace(concrete.left); //1178: Attempted access of inaccessible property left through a reference with static type abstract.
    }
  }
} 

//client

package{
  class{
    public function client():void{
      var c = new concrete();
      var u = new utility(c);
    }
  }
} 

Any idea how to gain access?