Problema com relatorio

Ola, quando eu chamo o relatorio eu n consigo imprimir o relatorio nem salvar com extensao .pdf, apenas em rtf e htm e tambem quando eu fecho o relatorio toda a aplicacao eh fechada

package relatorio.clientes;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.HashMap;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.view.JasperViewer;

public class ClientesCadastrados {

    private static Connection getConnection() throws
            ClassNotFoundException, SQLException {
        String driver = "com.mysql.jdbc.Driver";
        String url = "jdbc:mysql://localhost:3306/laboratorio";
        String user = "root";
        String password = "root";

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

    /* Gera Relatorio e visualiza-o */
    public void geraRelatorio() throws JRException, Exception {
        Connection con = getConnection();
        Statement stm = con.createStatement();
        String query = "select * from cliente";
        ResultSet rs = stm.executeQuery(query);

        HashMap parameters = new HashMap();

        JasperPrint jp = JasperFillManager.fillReport("C:\\Documents and Settings\\Administrador\\Meus documentos\\projetos\\distribuidora\\src\\relatorio\\clientes\\ClientesCadastrados.jasper", parameters, con);
        JasperViewer jrv = new JasperViewer(jp);
        jrv.setVisible(true);

        JasperViewer.viewReport("C:\\Documents and Settings\\Administrador\\Meus documentos\\projetos\\distribuidora\\src\\relatorio\\clientes\\ClientesCadastrados.pdf", true);
    }

    public static void main(String[] args) throws JRException, Exception {
        new ClientesCadastrados().geraRelatorio();
    }
}

e tambem o comando para chamar o relatorio no botao

try {
            new relatorio.clientes.ClientesCadastrados().geraRelatorio();
        } catch (JRException ex) {
            Logger.getLogger(ClienteListagemForm.class.getName()).log(Level.SEVERE, null, ex);
        } catch (Exception ex) {
            Logger.getLogger(ClienteListagemForm.class.getName()).log(Level.SEVERE, null, ex);
        }

obrigado

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