title: java.lang.NoClassDefFoundError: org/jaxen/jdom/JDOMXPath
body: <p>I've got a problem using jDOM 1.0 with weblogic6. Just using the method <code>XPath.newInstance(String)</code>, we encounter the following error message:</p>
  
  <pre><code>Caused by:
    java.lang.NoClassDefFoundError: org/jaxen/jdom/JDOMXPath
      at org.jdom.xpath.JaxenXPath.setXPath(JaxenXPath.java:281)
      at org.jdom.xpath.JaxenXPath.&lt;init&gt;(JaxenXPath.java:99)
      at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  </code></pre>
  
  <p>The class Parent is present in the jdom jar which is located in the lib directory of our web application. (Such as the jaxen beta 9 jar). I added `Jdom.jar and Jaxen beta 9 jar in classpath.</p>
  
  <p>But don't really understand which solution is to be applied.</p>
  
  <p>There is obviously a conflict with jaxen jar but what should we do exactly?</p>