Cannot display data from table using custom tag

Hello,

Im trying to display the name from a table called guesttbl using custom. But when i run the jsp file a blank page come up with no display although that when i run the query in mysql data comes up. There is no exception gene
rated also while executing the jsp.
I am not sure what i am missing here. Here is my java class:

package com.new.training;

import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.TagSupport;

public class SqlQuery extends TagSupport{
	
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	
	
	public int doStartTag() throws JspException {
	      try {
	    	  Class.forName("com.mysql.jdbc.Driver");
	    	  Connection con = DriverManager
	  		.getConnection("jdbc:mysql://:3306/guestdb","root",
	  				 "username");
	  		PreparedStatement statement = con.prepareStatement("select name from guesttbl where name = 'john'");
	  		ResultSet result = statement.executeQuery();
	  		
	  		while (result.next()){
	  			
	  			System.out.println(result.getString("name"));
	  			JspWriter out = pageContext.getOut();
		    	  out.print(result.getString("name"));
	  		}
	    	  
	      } catch (IOException ioe) {
	      	 ioe.printStackTrace();
	         throw new JspException("IOException while writing data to page" + ioe.getMessage());
	      } catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	      return SKIP_BODY;
	   }
	 
	   public int doEndTag() throws JspException {
	     return EVAL_PAGE;
	   }
	
	
}

Here is my tld file:

Here is my jsp file:

The column in my table are : id, name, password.

Any suggestion how to resolve this issue please?

Thanks

Sorry ignore the post please it is working fine now had a cache problem ;)