columns[i].setValueRendererSource(valueRenderer);
    public ITableColumnModel getColumns() {        List<String> names = getAcdHistoricalStats().getReportFields(getReportName());        MapTableColumn[] columns = new MapTableColumn[names.size()];        for (int i = 0; i < columns.length; i++) {            columns[i] = new MapTableColumn(getMessages(), getReportName(), names.get(i));        }                return new SimpleTableColumnModel(columns);    }