title: eclipse transfer failed zip file is empty
body: <p>I'm trying to add a JSF library to my project. 
  But when I try to download from eclipse, it says 
  "Transfer failed. Zip file is empty". The screenshot below shows what I'm talking about
  <img src="https://i.stack.imgur.com/giJXM.jpg" alt="Transfer failed. Zip file is empty"></p>