AssetStateDescriptor asd = (AssetStateDescriptor) sd_enum.nextElement();
AssetStateDimension asd = (AssetStateDimension) sd_enum.nextElement();
    private void initializeLastTimes()    {        // Need to initialize the last diagnosis times.  Here we choose        // to simply initialize them to be the current time at whichj        // this constructor is called.        //        Long cur_time = new Long( System.currentTimeMillis());        Enumeration sd_enum =                 this._asset_model.getAssetStateDescriptors().elements();        while ( sd_enum.hasMoreElements() ) {            AssetStateDescriptor asd =                     (AssetStateDescriptor) sd_enum.nextElement();            String asd_name = asd.getStateName();            this._last_diag_times.put( asd_name, cur_time );            this._last_belief_times.put( asd_name, cur_time );                    } // while sd_enum    } // method initializeLastDiagnosisTimes