title: how to access smart card from JavaPOS
body: <p>I'm new to JavaPOS, can anyone let me know how to access smart card from Javapos.</p>
  
  <p>Here's my code:</p>
  
  <pre><code>SmartCardRW smartCard = new SmartCardRW();
  try {
          smartCard.open("ACR122U");      
  } catch (JposException e) {
          e.printStackTrace();
  }
  </code></pre>
  
  <p>I'm getting </p>
  
  <blockquote>
    <p>java.lang.NoClassDefFoundError: org/apache/xml/serialize/BaseMarkupSerializer</p>
  </blockquote>
  
  <p>How to get rid of it?</p>