Jcombobox errado

Ola pessoal tó com um enrosco com o jcombobox não tah atualizando o retorno das minhas consultas nos formularios e o pior de tudo eh que não sei onde tah o erro.


sexo_pac = new javax.swing.JComboBox();

sexo_pac.setFont(new java.awt.Font("Times New Roman", 0, 15)); // NOI18N

sexo_pac.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Masculino", "Feminino" }));

sexo_pac.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));

sexo_pac.setDebugGraphicsOptions(javax.swing.DebugGraphics.BUFFERED_OPTION);

sexo_pac.setEnabled(false);


org.jdesktop.beansbinding.Binding binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, sexo_pac, org.jdesktop.beansbinding.ObjectProperty.create(), sexo_pac, org.jdesktop.beansbinding.BeanProperty.create("elements"));
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, apsconpac, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.sexoPac}"), sexo_pac, org.jdesktop.beansbinding.BeanProperty.create("selectedItem"));
bindingGroup.addBinding(binding);

sexo_pac.addActionListener(new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent evt) {
        sexo_pacActionPerformed(evt);
    }
});