AbstractTableModel

public class ImportTableModel extends AbstractTableModel {

    private Vector<Import> list;
    private String[] colunas = {"Lote", "Local", "Lista", "Membro", "Cli.Rota", "Cli.Env",
        "Cli.Ret.", "Cli.Fat.", "Cli.Fat.Lido", "Cli.Fat.N.Lido", "Cli.N.Fat.",
        "Cli.Duv.", "Cli.Duv.Fat.", "Cli.Duv.N.Fat.", "Cli.Duv.Corrig.Manual",
        "Cli.Duv.Corrig.Autom.", "Cli.Duv.N.Corrig", "Qtd.Reimpressos",
        "Qtd.End.Postal", "Qtd.Agrupamento", "Qtd.Outros", "Coletor", "Empreit.",
        "Cód. Leit.", "Nome Leit.", "Estado", "Tipo da Rota", "Coletor Ass.Duv.",
        "Qtd. Impr. Duv.", "Estado de Impressão dos Duvidosos", "Responsavel Coelce", "Telefone responsavel Coelce",
        "Responsavel parceira", "Telefone responsavel parceira"}; 

    public ImportTableModel(Vector<Import> list, boolean model) {
        this();
        this.list.addAll(list);
    }

    public ImportTableModel() {
        list = new Vector<Import>();
    }

    public int getRowCount() {
        return list.size();
    }

    public int getColumnCount() {
        return colunas.length;
    }

    public Object getValueAt(int rowIndex, int columnIndex) {
        if (rowIndex >= list.size()) {//tentei corrigir a exception com este comando, mas não funcionou
            return null;
        }
        Import imp = null;
        try {
            imp = list.get(rowIndex);
        } catch (Exception e) {
            return null;
        }
        switch (columnIndex) {
            case 0:
                return imp.getLote();
            case 1:
                return imp.getLocal();
            case 2:
                return imp.getLista();
            case 3:
                return imp.getMembro();
            case 4:
                return imp.getCliRota();
            case 5:
                return imp.getCliEnv();
            case 6:
                return imp.getCliRet();
            case 7:
                return imp.getCliFat();
            case 8:
                return imp.getCliFatLido();
            case 9:
                return imp.getCliFatNLido();
            case 10:
                return imp.getCliNFat();
            case 11:
                return imp.getCliDuv();
            case 12:
                return imp.getCliDuvFat();
            case 13:
                return imp.getCliDuvNFat();
            case 14:
                return imp.getCliDuvCorrgManual();
            case 15:
                return imp.getCliDuvCorrgAutoma();
            case 16:
                return imp.getCliDuvNCorrig();
            case 17:
                return imp.getQtdReimpressos();
            case 18:
                return imp.getQtdEndPostal();
            case 19:
                return imp.getQtdAgrupamento();
            case 20:
                return imp.getQtdOutros();
            case 21:
                return imp.getColetor();
            case 22:
                return imp.getEmpreit();
            case 23:
                return imp.getCodLeit();
            case 24:
                return imp.getNomeLeit();
            case 25:
                return imp.getEstado();
            case 26:
                return imp.getTipoRota();
            case 27:
                return imp.getColetorAssDuvidoso();
            case 28:
                return imp.getQtdImprDuv();
            case 29:
                return imp.getEstadoImpressaoDuv();
            default:
                return null;

        }
    }

    @Override
    public String getColumnName(int c) {
        if (c < 25) {
            return colunas[c];
        } else {
            return "";
        }

    }

    public Class getColumnClass(int c) {
        switch (c) {
            case 0:
                return Integer.class;
            case 1:
                return Integer.class;
            case 2:
                return Integer.class;
            case 3:
                return Integer.class;
            case 4:
                return Integer.class;
            case 5:
                return Integer.class;
            case 6:
                return Integer.class;
            case 7:
                return Integer.class;
            case 8:
                return Integer.class;
            case 9:
                return Integer.class;
            case 10:
                return Integer.class;
            case 11:
                return Integer.class;
            case 12:
                return Integer.class;
            case 13:
                return Integer.class;
            case 14:
                return Integer.class;
            case 15:
                return Integer.class;
            case 16:
                return Integer.class;
            case 17:
                return Integer.class;
            case 18:
                return Integer.class;
            case 19:
                return Integer.class;
            case 20:
                return Integer.class;
            case 21:
                return Integer.class;
            case 22:
                return String.class;
            case 23:
                return String.class;
            case 24:
                return String.class;
            case 25:
                return String.class;
            case 26:
                return String.class;
            case 27:
                return String.class;
            case 28:
                return String.class;
            case 29:
                return String.class;
            default:
                return null;

        }
    }
}