Lista de utilizadores numa JTable

public TabUsers() {
			String[][] data;
		  java.util.List array = new ArrayList();
			Database db = new Database(); // Objecto que faz a ligacao a base de dados
			ResultSet rs = db.executeSelect("select * from users;");
			try {
				while(rs.next()) {
					user = new UserBean();
					user.setUsernameSimple(rs.getString("username"));
					user.setPassword(rs.getString("password"));
					user.setEmail(rs.getString("email"));
					array.add(user);
				}
			} catch(SQLException e) {
				e.printStackTrace();
			}
			
			data = new String[array.size()][3];
			for (int i = 0; i < array.size(); i++) {
				data[i][0] = ((UserBean)array.get(i)).getUsername();
				data[i][1] = ((UserBean)array.get(i)).getPassword();
				data[i][2] = ((UserBean)array.get(i)).getEmail();
			}
			
			setLayout(new BorderLayout());
			table = new JTable(data, columnNames);
			JScrollPane sp = new JScrollPane(table);
			add(sp, BorderLayout.NORTH);
	}
}