Queria colocar uma barra de rolagem em uma jFrame

[b]Boa noite!

tava querendo pow uma barra de rolagem lateral nessa JFrame, segue o codigo abaixo!
se alguem poder min ajudar agradeço desde de já!
[/b]

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package JanelasViews;

import java.awt.EventQueue;
import java.beans.Beans;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.RollbackException;
import javax.swing.JFrame;
import javax.swing.JPanel;

/**
 *
 * @author Allan Maia
 */
public class teste extends JPanel {
    
    public teste() {
        initComponents();
        if (!Beans.isDesignTime()) {
            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.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {
        bindingGroup = new org.jdesktop.beansbinding.BindingGroup();

        entityManager = java.beans.Beans.isDesignTime() ? null : javax.persistence.Persistence.createEntityManagerFactory("ivelbancoPU").createEntityManager();
        query = java.beans.Beans.isDesignTime() ? null : entityManager.createQuery("SELECT u FROM Usuarios u");
        list = java.beans.Beans.isDesignTime() ? java.util.Collections.emptyList() : org.jdesktop.observablecollections.ObservableCollections.observableList(query.getResultList());
        masterScrollPane = new javax.swing.JScrollPane();
        masterTable = new javax.swing.JTable();
        codigoLabel = new javax.swing.JLabel();
        usuarioLabel = new javax.swing.JLabel();
        senhaLabel = new javax.swing.JLabel();
        codigoField = new javax.swing.JTextField();
        senhaField = new javax.swing.JTextField();
        saveButton = new javax.swing.JButton();
        refreshButton = new javax.swing.JButton();
        newButton = new javax.swing.JButton();
        deleteButton = new javax.swing.JButton();
        usuarioField = new javax.swing.JFormattedTextField();

        FormListener formListener = new FormListener();

        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("${codigo}"));
        columnBinding.setColumnName("Codigo");
        columnBinding.setColumnClass(Integer.class);
        columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${usuario}"));
        columnBinding.setColumnName("Usuario");
        columnBinding.setColumnClass(String.class);
        columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${senha}"));
        columnBinding.setColumnName("Senha");
        columnBinding.setColumnClass(String.class);
        bindingGroup.addBinding(jTableBinding);

        masterScrollPane.setViewportView(masterTable);

        codigoLabel.setText("Codigo:");

        usuarioLabel.setText("Usuario:");

        senhaLabel.setText("Senha:");

        org.jdesktop.beansbinding.Binding binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.codigo}"), codigoField, org.jdesktop.beansbinding.BeanProperty.create("text"));
        binding.setSourceUnreadableValue(null);
        bindingGroup.addBinding(binding);
        binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), codigoField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
        bindingGroup.addBinding(binding);

        binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.senha}"), senhaField, org.jdesktop.beansbinding.BeanProperty.create("text"));
        binding.setSourceUnreadableValue(null);
        bindingGroup.addBinding(binding);
        binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), senhaField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
        bindingGroup.addBinding(binding);

        saveButton.setText("Save");
        saveButton.addActionListener(formListener);

        refreshButton.setText("Refresh");
        refreshButton.addActionListener(formListener);

        newButton.setText("New");
        newButton.addActionListener(formListener);

        deleteButton.setText("Delete");

        binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), deleteButton, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
        bindingGroup.addBinding(binding);

        deleteButton.addActionListener(formListener);

        try {
            usuarioField.setFormatterFactory(new javax.swing.text.DefaultFormatterFactory(new javax.swing.text.MaskFormatter("##/##/####")));
        } catch (java.text.ParseException ex) {
            ex.printStackTrace();
        }

        binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.usuario}"), usuarioField, org.jdesktop.beansbinding.BeanProperty.create("value"));
        bindingGroup.addBinding(binding);
        binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), usuarioField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
        bindingGroup.addBinding(binding);

        usuarioField.addActionListener(formListener);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addComponent(newButton)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(deleteButton)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(refreshButton)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(saveButton))
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(codigoLabel)
                                    .addComponent(usuarioLabel)
                                    .addComponent(senhaLabel))
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(codigoField, javax.swing.GroupLayout.DEFAULT_SIZE, 315, Short.MAX_VALUE)
                                    .addComponent(senhaField, javax.swing.GroupLayout.DEFAULT_SIZE, 315, Short.MAX_VALUE)
                                    .addGroup(layout.createSequentialGroup()
                                        .addComponent(usuarioField, javax.swing.GroupLayout.PREFERRED_SIZE, 109, javax.swing.GroupLayout.PREFERRED_SIZE)
                                        .addGap(0, 0, Short.MAX_VALUE))))
                            .addComponent(masterScrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE))))
                .addContainerGap())
        );

        layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {deleteButton, newButton, refreshButton, saveButton});

        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(masterScrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 130, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(codigoLabel)
                    .addComponent(codigoField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(usuarioLabel)
                    .addComponent(usuarioField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(senhaLabel)
                    .addComponent(senhaField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(saveButton)
                    .addComponent(refreshButton)
                    .addComponent(deleteButton)
                    .addComponent(newButton))
                .addContainerGap())
        );

        bindingGroup.bind();
    }

    // Code for dispatching events from components to event handlers.

    private class FormListener implements java.awt.event.ActionListener {
        FormListener() {}
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            if (evt.getSource() == saveButton) {
                teste.this.saveButtonActionPerformed(evt);
            }
            else if (evt.getSource() == refreshButton) {
                teste.this.refreshButtonActionPerformed(evt);
            }
            else if (evt.getSource() == newButton) {
                teste.this.newButtonActionPerformed(evt);
            }
            else if (evt.getSource() == deleteButton) {
                teste.this.deleteButtonActionPerformed(evt);
            }
            else if (evt.getSource() == usuarioField) {
                teste.this.usuarioFieldActionPerformed(evt);
            }
        }
    }// </editor-fold>                        

    

    @SuppressWarnings("unchecked")
    private void refreshButtonActionPerformed(java.awt.event.ActionEvent evt) {                                              
        entityManager.getTransaction().rollback();
        entityManager.getTransaction().begin();
        java.util.Collection data = query.getResultList();
        for (Object entity : data) {
            entityManager.refresh(entity);
        }
        list.clear();
        list.addAll(data);
    }                                             
    
    private void deleteButtonActionPerformed(java.awt.event.ActionEvent evt) {                                             
        int[] selected = masterTable.getSelectedRows();
        List<JanelasViews.Usuarios> toRemove = new ArrayList<JanelasViews.Usuarios>(selected.length);
        for (int idx = 0; idx < selected.length; idx++) {
            JanelasViews.Usuarios u = list.get(masterTable.convertRowIndexToModel(selected[idx]));
            toRemove.add(u);
            entityManager.remove(u);
        }
        list.removeAll(toRemove);
    }                                            
    
    private void newButtonActionPerformed(java.awt.event.ActionEvent evt) {                                          
        JanelasViews.Usuarios u = new JanelasViews.Usuarios();
        entityManager.persist(u);
        list.add(u);
        int row = list.size() - 1;
        masterTable.setRowSelectionInterval(row, row);
        masterTable.scrollRectToVisible(masterTable.getCellRect(row, 0, true));
    }                                         
    
    private void saveButtonActionPerformed(java.awt.event.ActionEvent evt) {                                           
        try {
            entityManager.getTransaction().commit();
            entityManager.getTransaction().begin();
        } catch (RollbackException rex) {
            rex.printStackTrace();
            entityManager.getTransaction().begin();
            List<JanelasViews.Usuarios> merged = new ArrayList<JanelasViews.Usuarios>(list.size());
            for (JanelasViews.Usuarios u : list) {
                merged.add(entityManager.merge(u));
            }
            list.clear();
            list.addAll(merged);
        }
    }                                          

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

    // Variables declaration - do not modify                     
    private javax.swing.JTextField codigoField;
    private javax.swing.JLabel codigoLabel;
    private javax.swing.JButton deleteButton;
    private javax.persistence.EntityManager entityManager;
    private java.util.List<JanelasViews.Usuarios> list;
    private javax.swing.JScrollPane masterScrollPane;
    private javax.swing.JTable masterTable;
    private javax.swing.JButton newButton;
    private javax.persistence.Query query;
    private javax.swing.JButton refreshButton;
    private javax.swing.JButton saveButton;
    private javax.swing.JTextField senhaField;
    private javax.swing.JLabel senhaLabel;
    private javax.swing.JFormattedTextField usuarioField;
    private javax.swing.JLabel usuarioLabel;
    private org.jdesktop.beansbinding.BindingGroup bindingGroup;
    // End of variables declaration                   
    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(teste.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(teste.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(teste.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(teste.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /*
         * Create and display the form
         */
        EventQueue.invokeLater(new Runnable() {

            public void run() {
                JFrame frame = new JFrame();
                frame.setContentPane(new teste());
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.pack();
                frame.setVisible(true);
            }
        });
    }
}

:smiley:

tente colocar dentro de um JScrooPane()

new javax.swing.JScrollPane();

t+