Ошибка Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException, работа с properties

Хорошо, я создал небольшое Swing окошко, где при нажатии Enter отправляется сообщение на заданный нами Email. При этом я читаю данные из файла mail.properties и как я понял, моя программа не может найти этот файл и выдает исключение.

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:434)
at java.util.Properties.load0(Properties.java:353)
at java.util.Properties.load(Properties.java:341)
at com.jabl.MyAction.actionPerformed(MyAction.java:18)
at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1663)
at javax.swing.JComponent.processKeyBinding(JComponent.java:2882)
at javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:307)
at javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:250)
at javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2974)
at javax.swing.SwingUtilities.processKeyBindings(SwingUtilities.java:1587)
at javax.swing.UIManager$2.postProcessKeyEvent(UIManager.java:1483)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:817)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1074)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:945)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:771)
at java.awt.Component.dispatchEventImpl(Component.java:4760)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Код:

package com.jabl;
import javax.mail.*;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.io.*;
import java.util.Properties;
import java.util.Scanner;
public class MyAction extends AbstractAction {
    @Override
    public void actionPerformed(ActionEvent e) {
        try {
        final Properties properties = new Properties();
        properties.load(MyAction.class.getClassLoader().getResourceAsStream("mail.properties"));
        Session mailSession = Session.getDefaultInstance(properties);
        MimeMessage message = new MimeMessage(mailSession);
        message.setFrom(new InternetAddress("oleg.webster@gmail.com"));
        message.addRecipients(Message.RecipientType.TO,"anya_kim@gmail.com");
        message.setSubject("Привет!");
        message.setText("Это самый обычный тест! Не желаете отведать 8 пышных булочек?");
        Transport tr = mailSession.getTransport();
        tr.connect(null,"*****");
        tr.sendMessage(message, message.getAllRecipients());
        tr.close();
        } catch (NoSuchProviderException e1) {
            e1.printStackTrace();
        } catch (IOException e1) {
            e1.printStackTrace();
        } catch (AddressException e1) {
            e1.printStackTrace();
        } catch (MessagingException e1) {
            e1.printStackTrace();
        }
    }
    public static void keystroke(String key,JPanel jPanel){
        KeyStroke keyStroke = KeyStroke.getKeyStroke(key);
        InputMap inputMap = jPanel.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
        inputMap.put(keyStroke,"sendMessage");
        ActionMap actionMap = jPanel.getActionMap();
        AbstractAction action = new MyAction();
        actionMap.put("sendMessage",action);
    }
}

А так же прикладываю properties файл:

mail.transport.protocol=smtps
mail.smtps.auth=true
mail.smtps.host=smtps.gmail.com
mail.smtps.user=oleg.webster@gmail.com

В чем моя ошибка? И почему не находит файл(это только мои подозрения, что он его не находит)?