title: Eclipse: Exclude specific packages when autocompleting a class name
body: <p>When auto-completing a class name in Eclipse, e.g. if you type:</p>
  
  <p><code>ListI</code><kbd>Tab</kbd></p>
  
  <p>A pop-up menu appears offering you matching class names for completion (which you can select with the mouse or by using the arrow keys:</p>
  
  <p>In this example, I almost certainly want <code>java.util.ListIterator</code> and I almost never want <code>com.sun.xml.internal.bind.v2.runtime.reflect.ListIterator</code> (or anything else from that package).</p>
  
  <p>This particular class will appear in the list frequently (every time I declare a <code>ListIterator</code>).  I would like to be able to exclude packages from autocomplete searches, so that <code>java.util.ListIterator</code> is auto-completed without the need for a pop-up menu.</p>
  
  <p>Is this possible?</p>