title: RXTXCommDriver problem
body: <p>Hi i have simple code:</p>
  
  <pre><code>import gnu.io.CommPortIdentifier;
  import java.util.Enumeration;
  
  public class test
  {
  
      public static void main(String[] args)
      {   
          Enumeration pList = CommPortIdentifier.getPortIdentifiers();
          while (pList.hasMoreElements()) {
            CommPortIdentifier cpi = (CommPortIdentifier) pList.nextElement();
            System.out.print("Port " + cpi.getName() + " ");
          }
      }
  
  }
  </code></pre>
  
  <p>I have install library as they wrote <a href="http://www.agaveblue.org/howtos/Comm_How-To.shtml" rel="nofollow">here</a></p>
  
  <p>and i get such error </p>
  
  <p><code>java.lang.ClassCastException: gnu.io.RXTXCommDriver cannot be cast to gnu.io.CommDriver thrown while loading gnu.io.RXTXCommDriver</code></p>
  
  <p>whats wrong ?? Im working on ubuntu.</p>