Dentro de la ventana Login los componentes se muestran totalmente desordenados, a pesar que estoy utilizando GridBagLayout

package drone;
 
import java.awt.*;
import java.sql.*;
import java.text.Collator;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;
import javax.swing.*;
 
 
 
public class Login extends javax.swing.JFrame {
//private JPanel panel1;
public static boolean RIGHT_TO_LEFT = false;
final static boolean shouldFill = true;
final static boolean shouldWeightX = true;
 
 
    public Login() {
        initComponents();
        this.setSize(Toolkit.getDefaultToolkit().getScreenSize());
        PnlFondo fondo = new PnlFondo();
        this.setLayout(new BorderLayout());
        this.add(fondo,BorderLayout.CENTER);
        //getContentPane().setLayout(null);  
        //addComponentsToPane(pane);
    }
public static void addComponentsToPane(Container pane) {
        if (RIGHT_TO_LEFT) {
            pane.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
        }
 
        JLabel jLabel1,jLabel2,jLabel3;
        JTextField usuario;
        JPasswordField contraseña;
        JButton jButton2;
 
	pane.setLayout(new GridBagLayout());
	GridBagConstraints c = new GridBagConstraints();
	if (shouldFill) {
	//natural height, maximum width
	c.fill = GridBagConstraints.HORIZONTAL;
	}
 
	jLabel1 = new JLabel();
	if (shouldWeightX) {
	c.weightx = 0.5;
	}
	c.fill = GridBagConstraints.HORIZONTAL;
	c.gridx = 200;
	c.gridy = 100;
	pane.add(jLabel1, c);
 
	jLabel2 = new JLabel();
	c.fill = GridBagConstraints.HORIZONTAL;
	c.weightx = 0.5;
	c.gridx = 200;
	c.gridy = 110;
	pane.add(jLabel2, c);
 
	jLabel3 = new JLabel();
	c.fill = GridBagConstraints.HORIZONTAL;
	c.weightx = 0.5;
	c.gridx = 2;
	c.gridy = 0;
	pane.add(jLabel3, c);
 
	usuario = new JTextField("Long-Named Button 4");
	c.fill = GridBagConstraints.HORIZONTAL;
	c.ipady = 40;      //make this component tall
	c.weightx = 0.0;
	c.gridwidth = 3;
	c.gridx = 0;
	c.gridy = 1;
	pane.add(usuario, c);
 
        contraseña = new JPasswordField("Long-Named Button 4");
	c.fill = GridBagConstraints.HORIZONTAL;
	c.ipady = 40;      //make this component tall
	c.weightx = 0.0;
	c.gridwidth = 3;
	c.gridx = 0;
	c.gridy = 1;
	pane.add(contraseña, c);
 
 
	jButton2 = new JButton();
	c.fill = GridBagConstraints.HORIZONTAL;
	c.ipady = 0;       //reset to default
	c.weighty = 1.0;   //request any extra vertical space
	c.anchor = GridBagConstraints.PAGE_END; //bottom of space
	c.insets = new Insets(10,0,0,0);  //top padding
	c.gridx = 1;       //aligned with button 2
	c.gridwidth = 2;   //2 columns wide
	c.gridy = 2;       //third row
	pane.add(jButton2, c);
}
    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("GridBagLayoutDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
        //Set up the content pane.
        addComponentsToPane(frame.getContentPane());
 
        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }
 
    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {
 
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        usuario = new javax.swing.JTextField();
        jLabel3 = new javax.swing.JLabel();
        contraseña = new javax.swing.JPasswordField();
        jButton2 = new javax.swing.JButton();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 
        jLabel1.setText("Iniciar Sesion");
 
        jLabel2.setText("Usuario");
 
        jLabel3.setText("Contraseña");
 
        jButton2.setText("Aceptar");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });
 
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap(113, Short.MAX_VALUE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addGroup(layout.createSequentialGroup()
                            .addComponent(jLabel2)
                            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                            .addComponent(usuario, javax.swing.GroupLayout.PREFERRED_SIZE, 64, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGroup(layout.createSequentialGroup()
                            .addGap(20, 20, 20)
                            .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 84, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(169, 169, 169)))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jLabel3)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(contraseña, javax.swing.GroupLayout.PREFERRED_SIZE, 64, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(163, 163, 163))))
            .addGroup(layout.createSequentialGroup()
                .addGap(148, 148, 148)
                .addComponent(jButton2)
                .addGap(0, 0, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap(108, Short.MAX_VALUE)
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 14, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabel2)
                    .addComponent(usuario, javax.swing.GroupLayout.PREFERRED_SIZE, 27, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(11, 11, 11)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel3)
                    .addComponent(contraseña, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jButton2)
                .addGap(107, 107, 107))
        );
 
        pack();
    }// </editor-fold>                        
 
    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
 
        String user=usuario.getText();
        String pass=contraseña.getText();
        if ((user.length()==0)||(pass.length()==0)){
           JOptionPane.showMessageDialog(rootPane, "Campo usuario o contraseña vacio");
             }else{
            Conexion mysql= new Conexion();
       Connection conn= mysql.conectar();
      /* if(conn!=null){
           JOptionPane.showMessageDialog(rootPane, "Conexion con base de datos");
       }*/
              try {
                  @SuppressWarnings("null")
                  Statement sentencia= conn.createStatement(ResultSet.TYPE_FORWARD_ONLY,ResultSet.CONCUR_READ_ONLY);
                ResultSet rs;
                rs = sentencia.executeQuery("SELECT * FROM usuarios WHERE Usuario='"+user+"' && Contraseña='"+pass+"'");
                Collator comparador = Collator.getInstance();
                comparador.setStrength(Collator.TERTIARY);
                String tem1=rs.getString("Usuario");
                String tem2=rs.getString("Contraseña");
                if(rs.next()&&comparador.equals(user,tem1)&&comparador.equals(pass,tem2)){
                    Menu inicio=new Menu();
                    inicio.setVisible(true);
                }
                else{
                    JOptionPane.showMessageDialog(rootPane, "Los datos son incorrectos");
                }
            } catch (SQLException ex) {
                Logger.getLogger(Login.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        //if (user.equals()&&pass.equals());
    }                                        
 
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
 
        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
                new Login().setVisible(true);
            }
        });
 
    }
 
    // Variables declaration - do not modify                     
    private javax.swing.JPasswordField contraseña;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JTextField usuario;
    // End of variables declaration                   
}
 

A quien pueda ayudar, gracias por adelentado