title: White package icons in my Eclipse's package explorer
body: <p>I am getting these strange white package icons in my testing project. From what I've seen @ <a href="http://jamie.ideasasylum.com/images/icons.pdf" rel="noreferrer">http://jamie.ideasasylum.com/images/icons.pdf</a>, they signal "empty packages", but I  don't know why.</p>
  
  <p><img src="https://i.stack.imgur.com/ZLgLB.png" alt="enter image description here"></p>
  
  <p>My <code>src/</code> folder is set is includedin the build path, so I don't get what the problem might be:</p>
  
  <p><img src="https://i.stack.imgur.com/6rZ32.png" alt="enter image description here"></p>
  
  <p>Thanks</p>