title: How can I link source to a jar package in eclipse?
body: <p>How can I link source to a jar package in eclipse?</p>
  
  <p>I am trying to add the external library <a href="http://libusbjava.sourceforge.net/wp/" rel="nofollow"><code>ch.ntb.usb</code></a>. </p>
  
  <p>I added the jar file to my build path, but when I tried to run the application it returned the following error:</p>
  
  <blockquote>
    <p>The jar file ch.ntb.usb has no source attachment.</p>
  </blockquote>
  
  <p>I've used JD-GUI to decompile the jar file and the source code is contained.</p>