title: Adding a List to Json ObjectNode
body: <pre><code>ObjectNode row = Json.newObject();
  row.put("0", a);
  row.put("1", x);
  row.put("2", y);
  </code></pre>
  
  <p>now I have list</p>
  
  <pre><code>List&lt;String&gt; list = new ArrayList&lt;String&gt;();
  </code></pre>
  
  <p>How can I add this to the row?</p>