Erro conexão com banco de dados

A conexao com o BD está dando erro no metodo listarDisciplina(), mas está correto no metodo cadastrarDisciplina():

import java.sql.SQLException;
import java.sql.*;

public class Conexao { protected Connection getConnection() throws Exception {

String driverName = "org.postgresql.Driver";
String databaseURL = "jdbc:postgresql://localhost/postgres";
String user = "postgres";
String pass = "postgres";
Class.forName(driverName);
return DriverManager.getConnection(databaseURL, user, pass);
}
}
 

 

 

 

 

import java.sql.SQLException;
import java.sql.*;
import java.util.LinkedList;
import java.util.List;

public class Disciplina extends Conexao{

 private int coddisc;
 private String nome;
 private int ncreditos;

//gets e sets

public void cadastrarDisciplina(Disciplina u){
try {

 Connection conn = getConnection();
 String sql = "INSERT INTO disciplina VALUES (?, ?, ?)";
 PreparedStatement ps = conn.prepareStatement(sql);
 ps.setInt(1, u.getCoddisc());
 ps.setString(2, u.getNome());
 ps.setInt(3, u.getNcreditos());
 ps.executeUpdate();
 }
 catch (Exception e) {
 System.out.println(e.getMessage());
 }
 }

 public List<Disciplina> listarDisciplina() {
 List<Disciplina> lista = new LinkedList<Disciplina>();
 try {

 Connection con = getConnection();
 Statement statement = con.createStatement();
 String query = "SELECT CODDISC,NOME,NCREDITOS FROM DISCIPLINA";
 ResultSet results = statement.executeQuery(query);

 while (results.next()) {
 Integer cod = results.getInt("CODDISC");
 String nom = results.getString("TITLE");
 Integer cred = results.getInt("NCREDITOS");
 Disciplina disciplina = new Disciplina();
 disciplina.setCoddisc(cod);
 disciplina.setNome(nom);
 disciplina.setNcreditos(cred);
 lista.add(disciplina);
 }
 results.close();
 statement.close();
 } catch (SQLException e) {
 throw new UnsupportedOperationException(e.getMessage());
 }
 return lista;
 }

}

Erro:
error: unreported exception Exception; must be caught or declared to be
thrown
Connection con = getConnection();