Ireport nao abre fora do IDE

Prezados ,

Estou com um probleminha , bem, tenho uns relatorios que funcionam normalmente dentro do netbeans ! entretanto quando eu construo o arquivo e ele gera o .jar o relatorio nao aparece , eu clico no butao e nada aparece !

To pegando FILE NOT FOUND , onde eu coloco o .jasper ??
t’a no meu classpath

Eis minha classe

/*

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• and open the template in the editor.
  */

package blokretam;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.SQLException;

import java.util.HashMap;

import net.sf.jasperreports.engine.<em>;

import net.sf.jasperreports.engine.util.JRLoader;

import net.sf.jasperreports.view.</em>;

import net.sf.jasperreports.engine.xml.JRXmlLoader;

import net.sf.jasperreports.engine.design.JasperDesign;

import javax.swing.* ;

/**
*

• @author lestat
  
  */
  
  public class ChamaRelatorio {
  
  private static Connection getConnection() throws
  
  ClassNotFoundException, SQLException {
  
  String driver = “com.mysql.jdbc.Driver”;
  
  String url = “jdbc:mysql://localhost:3306/blokretam”;
  
  String user = “root”;
  
  String password = “senha”;
  

  Class.forName(driver);
   Connection con = DriverManager.getConnection(url, user, password);
   return con;
  

  }

  public static void main(String[] args) throws JRException, Exception {

  }

  public void geraRelatorio( String s ) throws JRException, SQLException, ClassNotFoundException {
  
  try {
  
  HashMap map = new HashMap();
  
  JasperReport jasperReport = (JasperReport) JRLoader.loadObject(s);
  
  JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, map,ChamaRelatorio.getConnection());
  
  JasperViewer jrviewer = new JasperViewer(jasperPrint, true);
  
  jrviewer.setVisible(true);
  
  } catch (Exception e) {
  
  JOptionPane.showMessageDialog(null, e);
  
  }
  
  }
  

}