title: How to get TableHeaderRow from TableView nowadays in JavaFX?
body: <p>I saw examples on how to get table header in many places with code</p>
  
  <pre><code>TableHeaderRow header = (TableHeaderRow) tableView.lookup("TableHeaderRow");
  </code></pre>
  
  <p>like here: <a href="https://stackoverflow.com/questions/22202782/how-to-prevent-tableview-from-doing-tablecolumn-re-order-in-javafx-8">How to prevent TableView from doing TableColumn re-order in javaFX 8?</a></p>
  
  <p>But this code returns <code>null</code> for me.</p>
  
  <p>How to reach <code>TableHeaderRow</code> then?</p>