C3p0 connection MySQL 8.0.11 configuration problem

C3P0 Connect MySQL There are two ways
The first one is ： Related parameters Specify in the program user url password

   @Test
    public void testc3p0_01() throws Exception {
        //1. Create a data source object 
        ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource();
        //2. Through the configuration file mysql.properties
        Properties properties = new Properties();
        properties.load(new FileInputStream("src\\mysql.properties"));
        String user = properties.getProperty("user");
        String password = properties.getProperty("password");
        String url = properties.getProperty("url");
        String driver = properties.getProperty("driver");
        // To data source comboPooledDataSource Set the relevant parameters 
        // The management of connections is done by comboPooledDataSource Managed 
        comboPooledDataSource.setDriverClass(driver);
        comboPooledDataSource.setJdbcUrl(url);
        comboPooledDataSource.setUser(user);
        comboPooledDataSource.setPassword(password);
        // Initialization of connections 
        comboPooledDataSource.setInitialPoolSize(10);
        // maximum connection 
        comboPooledDataSource.setMaxPoolSize(50);

        Connection connection = comboPooledDataSource.getConnection();// This method is from DataSource Interface implemented 
        System.out.println(" Successful connection ");
    }

The second way

public void testc3p0_02() throws SQLException {
        ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource("hsp_edu");
        Connection connection = comboPooledDataSource.getConnection();
        System.out.println(" Successful connection ");
        connection.close();
    }

The configuration file c3p0-config.xml It should be different from the old version

<!-- drive -->
<property name="driverClass">com.mysql.cj.jdbc.Driver</property>
  <!-- url-->
  	<property name="jdbcUrl">jdbc:mysql://localhost:3306/db02?useSSL=false&amp;serverTimezone=UTC&amp;characterEncoding=utf-8&amp;autoReconnect=true</property>