Java ResultSet.getWarnings()

SQLWarning getWarnings()   throws SQLException

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.Statement;
/*w w w  . j  ava 2 s.  c  om*/
public class Main {
  public static void main(String[] argv) throws Exception {

    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);

    try {
      SQLWarning warning = connection.getWarnings();
      while (warning != null) {
        String message = warning.getMessage();
        String sqlState = warning.getSQLState();
        int errorCode = warning.getErrorCode();
        warning = warning.getNextWarning();
      }
      Statement stmt = connection.createStatement();
      warning = stmt.getWarnings();
      if (warning != null) {

      }
      ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");
      while (resultSet.next()) {
        warning = resultSet.getWarnings();
        if (warning != null) {
        }
      }
    } catch (SQLException e) {
    }

  }
}