Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 >= 0

Tenho uma jTable e estou tentando preencher ela com dados do banco de dados. O NetBeans nao acusa nenhum erro no código, mas quando tento abrir a tabela aparece esse erro:

Exception in thread “AWT-EventQueue-0” java.lang.ArrayIndexOutOfBoundsException: 0 >= 0
** Ao final posto o erro completo **

Alguns trechos do código para que tenham uma melhor nocao do problema:

  • Código na classe de conexao com o banco que executa o SQL:

public void executaSql(String sql){
try{

        stm = con.createStatement(rs.TYPE_SCROLL_INSENSITIVE, rs.CONCUR_READ_ONLY);
        rs = stm.executeQuery(sql);
        
    }catch(SQLException ex){
        JOptionPane.showMessageDialog(null, "Erro ao executar SQL \n " +ex.getMessage());
    }
}
  • Classe"Modelo" da tabela:

public class ModeloTabelaEnVerde extends AbstractTableModel {

private ArrayList linhas = null;
private String[] colunas = null;

public ModeloTabelaEnVerde (ArrayList lin, String[] col){
    setLinhas(lin);
    setColunas(col);
}

/**
 * @return the linhas
 */
public ArrayList getLinhas() {
    return linhas;
}

/**
 * @param linhas the linhas to set
 */
public void setLinhas(ArrayList linhas) {
    this.linhas = linhas;
}

/**
 * @return the colunas
 */
public String[] getColunas() {
    return colunas;
}

/**
 * @param colunas the colunas to set
 */
public void setColunas(String[] colunas) {
    this.colunas = colunas;
}

// Metodo que conta o numero de colunas

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

// Metodo que conta o numero de linhas do array

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

// Metodo que pega o nome da coluna

public String getColumName (int numCol){
    return colunas[numCol];
}

// Metodo que recebe a quantidade de linhas da tabela

public Object getValueAt (int numLin, int numCol){
    Object[] linha = (Object[]) getLinhas().get(numLin);
    return linha[numCol];
}

}

  • Classe onde está a tabela:

public void preencherTabela (String Sql){
ArrayList dados = new ArrayList();
String[] colunas = new String[] {“Comp”, “RCV”, “RTH”, “Fri”, “Per”, “Hum”, “Esp”, “An”, “Temp”};

    conex.conectar();
    conex.executaSql(Sql);
    
    try{
        conex.rs.first();
        
        do{
            dados.add(new Object[] {conex.rs.getDouble("compactabilidad_arena_verde"), conex.rs.getDouble("rcv_arena_verde"), conex.rs.getDouble("rth_arena_verde"), conex.rs.getDouble("friabilidad_arena_verde"), conex.rs.getDouble("permeabilidad_arena_verde"), conex.rs.getDouble("humedad_arena_verde"), conex.rs.getDouble("especimen_arena_verde"), conex.rs.getString("analista_arena_verde"), conex.rs.getDouble("temperatura_arena_verde")});
        }while (conex.rs.next());
        
    }catch (SQLException ex){
        JOptionPane.showMessageDialog(null, "Erro ao preencher ArrayList \n " +ex.getMessage());
    }

ModeloTabelaEnVerde modelo = new ModeloTabelaEnVerde (dados, colunas);

    jTableArenaEnVerde.getColumnModel().getColumn(0).setPreferredWidth(25);
    jTableArenaEnVerde.getColumnModel().getColumn(0).setResizable(false);
    
    jTableArenaEnVerde.getColumnModel().getColumn(1).setPreferredWidth(25);
    jTableArenaEnVerde.getColumnModel().getColumn(1).setResizable(false);
    
    jTableArenaEnVerde.getColumnModel().getColumn(2).setPreferredWidth(25);
    jTableArenaEnVerde.getColumnModel().getColumn(2).setResizable(false);
    
    jTableArenaEnVerde.getColumnModel().getColumn(3).setPreferredWidth(25);
    jTableArenaEnVerde.getColumnModel().getColumn(3).setResizable(false);
    
    jTableArenaEnVerde.getColumnModel().getColumn(4).setPreferredWidth(25);
    jTableArenaEnVerde.getColumnModel().getColumn(4).setResizable(false);
    
    jTableArenaEnVerde.getColumnModel().getColumn(5).setPreferredWidth(25);
    jTableArenaEnVerde.getColumnModel().getColumn(5).setResizable(false);
    
    jTableArenaEnVerde.getColumnModel().getColumn(6).setPreferredWidth(25);
    jTableArenaEnVerde.getColumnModel().getColumn(6).setResizable(false);
    
    jTableArenaEnVerde.getColumnModel().getColumn(7).setPreferredWidth(25);
    jTableArenaEnVerde.getColumnModel().getColumn(7).setResizable(false);
    
    jTableArenaEnVerde.getColumnModel().getColumn(8).setPreferredWidth(25);
    jTableArenaEnVerde.getColumnModel().getColumn(8).setResizable(false);
    
    jTableArenaEnVerde.getTableHeader().setReorderingAllowed(false);
    jTableArenaEnVerde.setAutoResizeMode(jTableArenaEnVerde.AUTO_RESIZE_OFF);
    jTableArenaEnVerde.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    
    conex.desconectar();
}

É isso.Já procurei manuais, vídeos, fóruns gringos e nao encontrei nenhuma resposta. Alguma ideia o que posso fazer?

Erro completo:

Exception in thread “AWT-EventQueue-0” java.lang.ArrayIndexOutOfBoundsException: 0 >= 0
at java.util.Vector.elementAt(Vector.java:474)
at javax.swing.table.DefaultTableColumnModel.getColumn(DefaultTableColumnModel.java:294)
at visao.TabelaArenaEnVerde.preencherTabela(TabelaArenaEnVerde.java:107)
at visao.TabelaArenaEnVerde.(TabelaArenaEnVerde.java:36)
at visao.ConsultaBancoArenaEnVerde.jButtonTelaConsultaBancoArenaEnVerdeGenerarTablaActionPerformed(ConsultaBancoArenaEnVerde.java:154)
at visao.ConsultaBancoArenaEnVerde.access$100(ConsultaBancoArenaEnVerde.java:12)
at visao.ConsultaBancoArenaEnVerde$2.actionPerformed(ConsultaBancoArenaEnVerde.java:101)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6533)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)