server_info_param_column.setModelIndex(1);
server_info_param_column.setHeaderValue(" ");
server_info_param_column.setCellRenderer(new ServerInfoParamCellRenderer());
TableColumnModel column_model = new DefaultTableColumnModel();
column_model.addColumn(server_info_label_column);
column_model.addColumn(server_info_param_column);
this.setModel(new ServerInfoTableModel());
this.setColumnModel(column_model);
}