Barra de rolagem(Scroll)

package Telas;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.*;

import javax.swing.*;

import Negocio.*;

public class TelaListaAluno extends JFrame {
	private JPanel textPanel, p1;
	private Container c;
	private JTextArea lbl;

	public TelaListaAluno(String titulo) {
		super(titulo);
		c = getContentPane();
		c.setLayout(new BorderLayout());
		
		//Campos do formulário
		textPanel = new JPanel();
		textPanel.setLayout(new GridLayout(2, 1));

		p1 = new JPanel();
		p1.setLayout(new FlowLayout(0));
		lbl = new JTextArea();
		Vector alunoColection = GerenciadorAluno.recuperaAlunos();
		Iterator listaAluno = alunoColection.iterator();
		String aux="";
        while(listaAluno.hasNext()){
        	AlunoBean aluno = (AlunoBean) listaAluno.next();
        	aux+=("Matricula: " + aluno.getMatricula()+ 
        		  "\nNome: " + aluno.getNome()+
        		  "\n\n------------------------\n\n");
        }
        lbl.setText(aux);
		p1.add(lbl);
		textPanel.add(p1);
		
		c.add(textPanel, BorderLayout.CENTER);

		pack();
		setVisible(true);
	}
	
}