title: Why the book says JDBC damage the Parental delegation model？
body: <p>Some books say JDBC damage the Parental delegation model, but i read the source about JDBC not found where the breaking shows.</p>
  
  <p>it seems like every class is loaded by Application Classloader：</p>
  
  <pre><code>public static void doingJdbc(){
      try {
  
          Connection connection = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/design", "root", "fengcs");
  
          String sql = "select * from tb_user";
  
          PreparedStatement preparedStatement = connection.prepareStatement(sql);
  
          preparedStatement.executeQuery();
  
          ResultSet resultSet = preparedStatement.getResultSet();
  
          while (resultSet.next()) {
              int id = resultSet.getInt(1);
              System.out.println("===================&gt;"+ id);
          }
      } catch (Exception ex) {
          ex.printStackTrace();
      }
  }
  </code></pre>
  
  <p>In DriverManager also not found the breaking, i don't know where the code shows the breaking.</p>
  
  <p>please show me the specific code, Thanks.</p>