Não consigo maximizar um JInternalFrame depois do pack()

Assuntos Gerais
#1

Pessoal,

Não consigo maximizar um JInternalFrame depois do pack(), ele simplesmente não maximiza. Seguem as classes:

//Classe ProcEmployer - essa classe monta o formulario de busca
EmployerSQL to search
 
public class ProcEmployer extends JInternalFrame implements ActionListener {
 
private static final long serialVersionUID = -1237537304008263064;
 
private JLabel lblName;
private JTextField txtName;
 
private JLabel lblRG;
private JTextField txtRG;
 
private JLabel lblCPF;
private JTextField txtCPF;
 
private JButton bSearchr;
 
private JPanel resultSearch;
private JPanel buttons;
private JPanel form;
 
private JScrollPane resultScroll = null;
 
public ProcEmployer(){
 
super("Search Employer",true,true,true,true);
 
this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
this.getContentPane().setLayout(new BorderLayout());
 
lblName = new JLabel("Name");
txtName = new JTextField("");
 
lblRG = new JLabel("RG");
txtRG = new JTextField("");
 
lblCPF = new JLabel("CPF");
txtCPF = new JTextField("");
 
bSearch = new JButton("Search");
 
bSearch.addActionListener(this);
 
form = new JPanel(new GridLayout(3, 2));
 
txtName.requestFocus();
 
form.add(lblName);
form.add(txtName);
form.add(lblRG);
form.add(txtRG);
form.add(lblCPF);
form.add(txtCPF);
 
buttons = new JPanel(new FlowLayout());
buttons.add(bSearch);
 
resultSearch = new JPanel(new FlowLayout());
 
this.getContentPane().add(form, BorderLayout.NORTH);
this.getContentPane().add(buttons, BorderLayout.CENTER);
 
}
 
public void actionPerformed(ActionEvent e){
 
 
if (e.getActionCommand().equals("Search")) {
 
if(resultScroll != null)
    resultSearch.remove(resultScroll);
 
    resultScroll = FuncionarioSQL.Searchr(txtName.getText(),txtRG.getText(),txtCPF.getText());
    resultSearch.add(resultScroll);
   
    this.getContentPane().add(resultSearch, BorderLayout.SOUTH);
   
    pack();
 
JOptionPane.showMessageDialog(this, "OK");
 
} else {
JOptionPane.showMessageDialog(this, "Cancel");
}
 
}
 
}


 //Classe Layout - essa classe chama o ProcEmployer
 public class Layout extends JFrame {
 
 private static final long serialVersionUID = 1;
 
 private JDesktopPane theDesktop;
 
 public Layout() {
 super("Project");
 
 JMenuBar bar = new JMenuBar(); 
 JMenu addMenu = new JMenu("Main");
 JMenuItem newFrame3 = new JMenu("Employer");
 JMenuItem newFrame31 = new JMenuItem("Cadastrar");
 JMenuItem newFrame32 = new JMenuItem("Search");
 JMenuItem newFrame50 = new JMenuItem("Exit");
 JMenuItem newFrame22 = new JMenuItem("About");
 
 addMenu.add(newFrame); 
 addMenu.add(newFrame3); 
 addMenu.add(newFrame50); 
 addMenu2.add(newFrame22); 
 newFrame3.add(newFrame31); 
 newFrame3.add(newFrame32); 
 
 bar.add(addMenu); // add Add menu to menu bar
 bar.add(addMenu2); // add Add menu to menu bar
 setJMenuBar(bar); // set menu bar for this application
 
 theDesktop = new JDesktopPane(); // create desktop pane
 setContentPane(theDesktop); // add desktop pane to frame
 
 
 newFrame32.addActionListener(
 
  new ActionListener() {// anonymous inner class
  
  // display new internal win
  public void actionPerformed(ActionEvent event){
 
      ProcEmployer panel = new ProcEmployer(); // create new panel
      
     
   panel.pack();
   panel.setVisible(true);
   theDesktop.add(panel, BorderLayout.CENTER); // add panel
   
                  try {
                panel.setMaximum(true);
                panel.setSelected(true);
                  } catch (PropertyVetoException e) {
      e.printStackTrace();
       }
  
  } // end method actionPerformed 
 } // end anonymous inner class
 ); // end call to addActionListener
 
 
 newFrame50.addActionListener(
 
  new ActionListener() {// anonymous inner class
  
  // display new internal window
  public void actionPerformed(ActionEvent event) {
  
  System.exit( 0 ); // Sai da aplicação
  
  
  } // end method actionPerformed 
 
 
 } // end anonymous inner class
 ); // end call to addActionListener
 
 newFrame22.addActionListener(
  new ActionListener() {// anonymous inner class
  
  // display new internal window
  public void actionPerformed(ActionEvent event) {
 
  JOptionPane.showMessageDialog(null,"ver. Alpha","About",JOptionPane.INFORMATION_MESSAGE);
 
  } // end method actionPerformed
  
 } // end anonymous inner class
 ); // end call to addActionListener
 
 } // end constructor DesktopFrame
 } // end class 
//classe EmployerSQL - essa classe é chamada pelo ProcEmployer e retorna o resultado da busca pro próprio ProcEmployer (q estende um JInternalFrame)
public class EmployerSQL {
	
	
	static final String JDBC_DRIVER = "org.hsqldb.jdbcDriver";        
	static final String DATABASE_URL = "jdbc:hsqldb:file:/path_to_dbl/db";
	static final String USERNAME= "sa";
	static final String PASSWORD= "";
 
    public static JScrollPane Search(String name,String RG,String CPF){	 
 
    	final String DEFAULT_QUERY = "SELECT * FROM employer WHERE nome LIKE '%"+name+"%'";
    	ResultSetTableModel tableModel = null;
    	JTable resultTable = null;
    	
		try {
			tableModel = new ResultSetTableModel( JDBC_DRIVER, DATABASE_URL,USERNAME, PASSWORD, DEFAULT_QUERY );
 
		} catch (SQLException e) {
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		}
		resultTable = new JTable( tableModel );
 
		JScrollPane scrollPane = new JScrollPane();
		scrollPane.setPreferredSize(new Dimension(768, 390));//<---this is my problem, i dont know how can i maximize the JInternalFrame after the search
		scrollPane.getViewport().add( resultTable );
 
		return scrollPane;
    }
     
}
#2