title: How to display empty rows in a JTable and be able to sort the empty rows to always appear at bottom
body: <p>I have a JTable with some data and some empty rows. 
  The table is constructed with a table model with 5 rows of data. But I have it showing and additional 6 empty rows below the 5 filled rows by overloading the <code>getRowCount()</code> to return 11 in the table model.</p>
  
  <p>However when I do a sort, the empty rows will appear at the top of the table. I would like the empty rows to always show at the bottom of the table. </p>
  
  <p>What is the best way of doing this without creating a second table with empty rows tacked on below the one that is sort-able? </p>
  
  <p>Thanks!</p>