private void saveColumnSpecification() {
   final TableColumnModel columnModel = table.getColumnModel();
   final int numColumns = table.getColumnCount();
   final List<String> columns = new ArrayList<String>(numColumns);
   final List<Integer> columnWidths = new ArrayList<Integer>(numColumns);
   for (int i = 0; i < numColumns; i++) {
     final String columnName = table.getColumnName(i);
     columns.add(columnName);
     final TableColumn column = columnModel.getColumn(i);
     final int columnWidth = column.getWidth();
     columnWidths.add(Integer.valueOf(columnWidth));
   }
   tableSpecification.setColumnOrder(columns);
   tableSpecification.setColumnWidths(columnWidths);
   MetricsProfileRepository.getInstance().persistCurrentProfile();
 }
  private static void setColumnWidths(JTable table, MetricTableSpecification tableSpecification) {
    final TableModel model = table.getModel();
    final TableColumnModel columnModel = table.getColumnModel();

    final List<Integer> columnWidths = tableSpecification.getColumnWidths();
    final List<String> columnOrder = tableSpecification.getColumnOrder();
    if (columnWidths != null && !columnWidths.isEmpty()) {

      final int columnCount = model.getColumnCount();
      for (int i = 0; i < columnCount; i++) {
        final String columnName = model.getColumnName(i);
        final int index = columnOrder.indexOf(columnName);
        if (index != -1) {
          final Integer width = columnWidths.get(index);
          final TableColumn column = columnModel.getColumn(i);
          column.setPreferredWidth(width.intValue());
        }
      }
    } else {
      final Graphics graphics = table.getGraphics();
      final Font font = table.getFont();
      final FontMetrics fontMetrics = table.getFontMetrics(font);

      final int rowCount = model.getRowCount();
      int maxFirstColumnWidth = 100;
      for (int i = 0; i < rowCount; i++) {
        final String name = (String) model.getValueAt(i, 0);
        if (name != null) {
          final Rectangle2D stringBounds = fontMetrics.getStringBounds(name, graphics);
          final double stringWidth = stringBounds.getWidth();
          if (stringWidth > maxFirstColumnWidth) {
            maxFirstColumnWidth = (int) stringWidth;
          }
        }
      }

      final int allocatedFirstColumnWidth = Math.min(300, maxFirstColumnWidth + 5);
      final TableColumn column = columnModel.getColumn(0);
      column.setPreferredWidth(allocatedFirstColumnWidth);
    }
  }