Create A Connection Pool In the ServletContextListener

Question

The Specification says that we should create the connection pool in the ServletContextListener. I have the code for creating a connection pool (see below). How do I create it in the ServletContextListener?
import java.sql.Connection;
import java.sql.SQLException;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
public class DBConnection
   public static Connection getDBConnection() throws SQLException
      Connection conn = null;
      try
         InitialContext ctx = new InitialContext();
         DataSource ds = ( DataSource ) ctx.lookup( "java:comp/env/jdbc/MySQLDB" );
         try
            conn = ds.getConnection();
         catch( SQLException e )
            System.out.println( "Open connection failure: " + e.getMessage() );
      catch( NamingException nEx )
         nEx.printStackTrace();
      return conn;

Answer 1

I use the connection pool feature provide by the server I use. Is this what I should do? Please confirm.
import java.sql.Connection;
import java.sql.SQLException;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
import javax.servlet.*;
public class CreateResources implements javax.servlet.ServletContextListener
     public void contextInitialized(ServletContextEvent sce)
          public static Connection getDBConnection() throws SQLException
               Connection conn = null;
               try
                    InitialContext ctx = new InitialContext();
                    DataSource ds = ( DataSource ) ctx.lookup( "java:comp/env/jdbc/MySQLDB" );
                    try
                         conn = ds.getConnection();
                    catch( SQLException e )
                         System.out.println( "Open connection failure: " + e.getMessage() );
              catch( NamingException nEx )
                    nEx.printStackTrace();
              return conn;
     public void contextDestroyed(ServletCotnextEvent sce)
}