title: add ListSelectionListener on JComboBox
body: <p>I'm quite new to Java Swing. And I'm stuck on trying to add a <code>ListSelectionListener</code> on a <code>JComboBox</code> instance. It seems only the <code>ListSelectionModel</code> interface has <code>addListSelectionListener</code> method. I kind of cannot figure it out...</p>
  
  <p>Why I want to do add it is that I want program do something even the item in the combo box is not changes after selecting.</p>
  
  <p><strong>POTENTIAL ANSWER</strong>
  I was simply thinking of attaching an actionListener on combobox not working. and i think it's bug of openjdk. I've reported it <a href="https://bugs.openjdk.java.net/show_bug.cgi?id=100179" rel="nofollow">here</a></p>
  
  <p>Thanks in advance.</p>