Netbeans - Sql error or missing database

Estoy haciendo un programa en Netbeans conectado a SQLite usando JFrame , tengo bien la ubicación del archivo dentro de mi PC y las librerias de jdbc y el sql-connector.

Cuando compilo el programa y "conecta" me marca conexión exitosa pero no muestra ningun registro de la tabla de la base de datos.

Tengo bien los datos de la tabla , asi que creo que puedo descartar un error de sintaxis de SQL.
Me marca el error "Sql error or missing database (no such table: Empleados)
Aqui mi codigo:

Espero me puedan ayudar

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;

import javax.swing.table.DefaultTableModel;//para interactuar con las tablas
import javax.swing.JOptionPane;

public class forma1 extends javax.swing.JFrame {

/** Creates new form forma1 */
public forma1() {
initComponents();
model = (DefaultTableModel) this.jTable1.getModel();
}
DefaultTableModel model;

String url= "jdbc:sqlite:C:/Users/Isaias/Documents/Modular Phone Station/sqlite_java/Basedatosliteprueba.bd";
Connection conectar;

/** 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() {

jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
jTable1 = new javax.swing.JTable();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jButton1.setText("Conectar");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});

jButton2.setText("Seleccionar ");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});

jButton3.setText("Insertar");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});

jButton4.setText("Cerrar");
jButton4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton4ActionPerformed(evt);
}
});

jTable1.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {

},
new String [] {
"Title 1", "Title 2"
}
));
jScrollPane1.setViewportView(jTable1);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createSequentialGroup()
.addComponent(jButton1)
.addGap(42, 42, 42)
.addComponent(jButton2)
.addGap(41, 41, 41)
.addComponent(jButton3)
.addGap(44, 44, 44)
.addComponent(jButton4)))
.addContainerGap(222, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(22, 22, 22)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1)
.addComponent(jButton2)
.addComponent(jButton3)
.addComponent(jButton4))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);

pack();
}// </editor-fold>

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
try{
Class.forName("org.sqlite.JDBC");
conectar = DriverManager.getConnection(url);
if(conectar!=null){



JOptionPane.showMessageDialog(null,"Conexion exitosa");
}
System.out.println();
}catch(Exception x ){
JOptionPane.showMessageDialog(null,x.getMessage().toString());
}

}

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:

model.setRowCount(0);
ResultSet resul=null;

try{

PreparedStatement st = conectar.prepareStatement("select * Telefono, Nombre from Empleados");
resul = st.executeQuery();

while(resul.next()){
model.addRow(new Object[]{resul.getInt("Telefono"),resul.getString("Nombre")});
}

}catch (Exception x){

}
}

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:

try{

PreparedStatement st= conectar.prepareStatement("insert into Empleados(Nombre) values('nuevo empleado')");
st.execute();
JOptionPane.showMessageDialog(null,"Datos guardados");
}catch(Exception x){
JOptionPane.showMessageDialog(null,x.getMessage().toString());
}


}

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:


try{
conectar.close();
}catch(Exception x){
JOptionPane.showMessageDialog(null,x.getMessage().toString());
}

}

/**
* @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(forma1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(forma1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(forma1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(forma1.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() {
new forma1().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
// End of variables declaration
}

Date una vuelta por acá Como formular UNA BUENA PREGUNTA para obtener ayuda más rápido en LWP

El mensaje es claro, falta la base de datos o no existe la tabla Empleados.
Puedes usar SQLIte Studio para examinar la base de datos.