Ajuda com Exceções

import java.util.*;
import java.io.*;
import java.sql.*;

public class GerenciadorLogin{
	private final static Properties props = new Properties();
	private final String classPath = "propsJdbc.properties";
	
	public GerenciadorLogin(){
		try{
			props.load(new FileInputStream(classPath));
		}
		catch(IOException e){
			System.out.println("Erro ao carregar arquivo!");
		}
		
	}
	
	public void logar1(String s, String s1){
	}
		
	public static void logar(String user, String login) throws SQLException {
		try{
			System.out.println("Procurando Driver...");
			Class.forName(props.getProperty("driver"));
			System.out.println("Driver encontrado!");
			
			String url = props.getProperty("url");
			String userName = props.getProperty("user");
			String senha = props.getProperty("login");
			
			Connection con = DriverManager.getConnection(url,"","");
			System.out.println("Conectado...");
			
			Statement stm = con.createStatement();
			
			ResultSet rs = stm.executeQuery("select user,login from usuarios where user=userName;");
			
			String u="",s="";
			while (rs.next()){
				u = rs.getString("user");
				s = rs.getString("login");
			}
			
			if (u.equals(user) && s.equals(login)){
			     System.out.println("Usuario e Login corretos");
			}
			else{
                 System.out.println("Usuario ou Senha Incorreto");
			}
				
		}
		catch(ClassNotFoundException e){
			System.out.println("Classe nao encontrada");
		}
		catch(SQLException sqle){
    		System.out.println("Erro no SQL");
    	}
	}
	
}

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;

/**
 * Sample application using Frame.
 *
 * @author 
 * @version 1.00 06/05/19
 */
public class LoginFrame extends JFrame {
	
	JLabel JLuser = new JLabel("User: ");
        JLabel JLlogin = new JLabel("Login: ");
        JTextField JTFuser = new JTextField();
        JTextField JTFlogin = new JTextField();
        JButton JBok = new JButton("OKkkkkk");
    
    /**
     * The constructor.
     */  
     public LoginFrame() {
     	   	
		Container c = getContentPane();
		c.setLayout(null);
                
                
        JLuser.setEnabled(true);
        JLuser.setBounds(100,100,50,50);
        c.add(JLuser);
        
        JTFuser.setEnabled(true);
        JTFuser.setBounds(150,110,100,25);
        c.add(JTFuser);
        
        JLlogin.setEnabled(true);
        JLlogin.setBounds(100,130,50,50);
        c.add(JLlogin);
        
        JTFlogin.setEnabled(true);
        JTFlogin.setBounds(150,140,100,25);
        c.add(JTFlogin);
        
        JBok.setEnabled(true);
        JBok.setBounds(125,170,100,25);
        c.add(JBok);
        
        OuvinteBtnOk btnok = new OuvinteBtnOk();
        JBok.addActionListener(btnok);     
        
        MenuBar menuBar = new MenuBar();
        Menu menuFile = new Menu();
        MenuItem menuFileExit = new MenuItem();
        
        menuFile.setLabel("File");
        menuFileExit.setLabel("Exit");
        menuFileExit.setLabel("ok");
        
        // Add action listener.for the menu button
        menuFileExit.addActionListener
        (
            new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    LoginFrame.this.windowClosed();
                }
            }
        ); 
        menuFile.add(menuFileExit);
        menuBar.add(menuFile);
        
        setTitle("Login");
        setMenuBar(menuBar);
        setSize(new Dimension(400, 400));
        
        // Add window listener.
        this.addWindowListener
        (
            new WindowAdapter() {
                public void windowClosing(WindowEvent e) {
                    LoginFrame.this.windowClosed();
                }
            }
        );  
    }
    
    private class OuvinteBtnOk implements ActionListener {
    	
    	public void actionPerformed(ActionEvent ae){
    		GerenciadorLogin.logar(JTFuser.getText(),JTFlogin.getText());
    	} 
    }
    
    /**
     * Shutdown procedure when run as an application.
     */
    protected void windowClosed() {
    	
    	// TODO: Check if it is safe to close the application
    	
        // Exit application.
        System.exit(0);
    }
}