Olá galera do GUJ tudo bem?
Após eu compilar eu nao consigo vizualizar o meu formulário. Aguem pode me ajudar?
Obs: esse formulario é ligado a uma tabela (Banco mysql) chamada tipo_pgto que possui 2 campos: COD_TIPO_PGTO e DESCRICAO_TIPO_PGTO.
Desde ja agradeço a atenção de vocês 
segue abaixo o meu codigo
package br.com.siscom.view;
/*
* TipoPgtoView.java
*
* Created on 17 de Março de 2013, 11:13
*/
import java.awt.EventQueue;
import java.awt.*;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
/**
*
* @author Guitar
*/
public class TipoPgtoView extends javax.swing.JFrame {
/** Creates new form TipoPgtoView */
public TipoPgtoView() {
initComponents();
TableSelectionListener listener = new TableSelectionListener();
masterTable.getSelectionModel().addListSelectionListener(listener);
entityManager.getTransaction().begin();
}
/** 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.
*/
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
bindingGroup = new org.jdesktop.beansbinding.BindingGroup();
entityManager = javax.persistence.Persistence.createEntityManagerFactory("siscomjavaPU").createEntityManager();
query = ((javax.persistence.EntityManager)null).createQuery("SELECT t FROM TipoPgto t");
list = org.jdesktop.observablecollections.ObservableCollections.observableList(query.getResultList());
jScrollPane1 = new javax.swing.JScrollPane();
masterTable = new javax.swing.JTable();
descricaoTipoPgtoField = new javax.swing.JTextField();
jLabel1 = new javax.swing.JLabel();
inserirButton = new javax.swing.JButton();
excluirButton = new javax.swing.JButton();
cancelarButton = new javax.swing.JButton();
salvarButton = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
org.jdesktop.swingbinding.JTableBinding jTableBinding = org.jdesktop.swingbinding.SwingBindings.createJTableBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, list, masterTable);
org.jdesktop.swingbinding.JTableBinding.ColumnBinding columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${descricaoTipoPgto}"));
columnBinding.setColumnName("Descricao Tipo Pgto");
columnBinding.setColumnClass(String.class);
bindingGroup.addBinding(jTableBinding);
jTableBinding.bind();
jScrollPane1.setViewportView(masterTable);
org.jdesktop.beansbinding.Binding binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.descricaoTipoPgto}"), descricaoTipoPgtoField, org.jdesktop.beansbinding.BeanProperty.create("text"));
binding.setSourceUnreadableValue(null);
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement!=null}"), descricaoTipoPgtoField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
bindingGroup.addBinding(binding);
jLabel1.setText("Descrição do Tipo ");
inserirButton.setText("Inserir");
inserirButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
inserirButtonActionPerformed(evt);
}
});
excluirButton.setText("Excluir");
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), excluirButton, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
bindingGroup.addBinding(binding);
excluirButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
excluirButtonActionPerformed(evt);
}
});
cancelarButton.setText("Cancelar");
cancelarButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
cancelarButtonActionPerformed(evt);
}
});
salvarButton.setText("Salvar");
salvarButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
salvarButtonActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 375, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(18, 18, 18)
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(descricaoTipoPgtoField, javax.swing.GroupLayout.DEFAULT_SIZE, 270, Short.MAX_VALUE))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(inserirButton)
.addGap(18, 18, 18)
.addComponent(excluirButton)
.addGap(18, 18, 18)
.addComponent(cancelarButton)
.addGap(18, 18, 18)
.addComponent(salvarButton)))
.addContainerGap(24, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 120, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1)
.addComponent(descricaoTipoPgtoField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(51, 51, 51)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(inserirButton)
.addComponent(excluirButton)
.addComponent(cancelarButton)
.addComponent(salvarButton))
.addContainerGap(80, Short.MAX_VALUE))
);
bindingGroup.bind();
pack();
}// </editor-fold>
private class TableSelectionListener implements ListSelectionListener {
public void valueChanged(ListSelectionEvent e) {
if (e.getSource() == masterTable.getSelectionModel()) {
boolean enabled = (masterTable.getSelectedRow() != -1);
excluirButton.setEnabled(enabled);
}
}
}
private void inserirButtonActionPerformed(java.awt.event.ActionEvent evt) {
br.com.siscom.bean.TipoPgto tp = new br.com.siscom.bean.TipoPgto();
entityManager.persist(tp);
list.add(tp);
int row = list.size()-1;
masterTable.setRowSelectionInterval(row, row);
masterTable.scrollRectToVisible(masterTable.getCellRect(row, 0, true));
}
private void excluirButtonActionPerformed(java.awt.event.ActionEvent evt) {
int[] selected = masterTable.getSelectedRows();
List<br.com.siscom.bean.TipoPgto> toRemove = new ArrayList<br.com.siscom.bean.TipoPgto>(selected.length);
for (int idx=0; idx<selected.length; idx++) {
br.com.siscom.bean.TipoPgto tp = list.get(masterTable.convertRowIndexToModel(selected[idx]));
toRemove.add(tp);
entityManager.remove(tp);
}
}
private void cancelarButtonActionPerformed(java.awt.event.ActionEvent evt) {
entityManager.getTransaction().rollback();
entityManager.getTransaction().begin();
list.clear();
list.addAll(query.getResultList());
}
private void salvarButtonActionPerformed(java.awt.event.ActionEvent evt) {
entityManager.getTransaction().commit();
entityManager.getTransaction().begin();
}
/**
* @param args the command line arguments
*/
public static void main(final String args[]) {
EventQueue.invokeLater(new Runnable() {
public void run() {
JFrame frame = new JFrame();
frame.setContentPane(new TipoPgtoView());
//frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
frame.setTitle(args[0]);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton cancelarButton;
private javax.swing.JTextField descricaoTipoPgtoField;
private javax.persistence.EntityManager entityManager;
private javax.swing.JButton excluirButton;
private javax.swing.JButton inserirButton;
private javax.swing.JLabel jLabel1;
private javax.swing.JScrollPane jScrollPane1;
private java.util.List><br.com.siscom.bean.TipoPgto> list;
private javax.swing.JTable masterTable;
private javax.persistence.Query query;
private javax.swing.JButton salvarButton;
private org.jdesktop.beansbinding.BindingGroup bindingGroup;
// End of variables declaration
}