title: Using Guava's Tables.toTable
body: <p>I have a List of <code>Thing</code> holding two atrributes : <code>status</code> (an Enum) and <code>owner</code> (another object).</p>
  
  <p>I want to obtain a Guava <code>Table&lt;owner, status, Long&gt;</code> by traversing the <code>ArrayList</code> and counting the objects, including a count of <code>0</code> if some status isn't in the List, like that:</p>
  
  <pre><code>[owner1, status1, 2], [owner1, status2, 0], [owner2, status1, 3], [owner2, status2, 2]
  </code></pre>
  
  <p>how to use <code>.collect(Tables.toTable())</code> in that case?</p>