title: ImageIcon with JOptionPane not appearing in executable JAR
body: <p>As the title says,  I've been trying to get images into my JOption Message dialogs. I've gotten them to show when running it in eclipse, but when I export the file into an executable jar, the images don't load.</p>
  
  <p><a href="https://i.stack.imgur.com/VzkGI.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VzkGI.png" alt="In Eclipse"></a></p>
  
  <p><a href="https://i.stack.imgur.com/3T5br.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3T5br.png" alt="In jar executable"></a></p>
  
  <pre><code>    ImageIcon normal = new ImageIcon("src/project/normal.png");
      ImageIcon happy = new ImageIcon("src/project/happy.png");
      ImageIcon jackpot = new ImageIcon("src/project/jackpot.png");
      ImageIcon fail = new ImageIcon("src/project/fail.png");
      ImageIcon error = new ImageIcon("src/project/error.png");
  </code></pre>
  
  <p>I'm just calling the name of the ImageIcon into the JOptionPane.showMessageDialogue</p>