title: weblogic.descriptor.DescriptorException: Unmarshaller failed
body: <p>When i deploy my WAR in Weblogic 10.3.6 it runs but in weblogic 10.3.0 it throws this:</p>
  
  <blockquote>
    <p>Unable to load descriptor 
    D:\bea103\user_projects\domains\SRVWinplex\Deployments\WinplexAdmin.war/WEB-INF/weblogic.xml
    of module WinplexAdmin.war. The error is
    weblogic.descriptor.DescriptorException: Unmarshaller failed at
    weblogic.descriptor.internal.MarshallerFactory$1.createDescriptor(MarshallerFactory.java:152)
    at
    weblogic.descriptor.BasicDescriptorManager.createDescriptor(BasicDescriptorManager.java:306)
    at
    weblogic.application.descriptor.AbstractDescriptorLoader2.getDescriptorBeanFromReader(AbstractDescriptorLoader2.java:788)
    at
    weblogic.application.descriptor.AbstractDescriptorLoader2.createDescriptorBean(AbstractDescriptorLoader2.java:409)
    at
    weblogic.application.descriptor.AbstractDescriptorLoader2.loadDescriptorBeanWithoutPlan(AbstractDescriptorLoader2.java:759)
    at
    weblogic.application.descriptor.AbstractDescriptorLoader2.loadDescriptorBean(AbstractDescriptorLoader2.java:768)
    at
    weblogic.servlet.internal.WebAppDescriptor.getWeblogicWebAppBean(WebAppDescriptor.java:170)</p>
  </blockquote>
  
  <p>It's a problem with the weblogic.xml i guess. This is my weblogic.xml(Without basic tags) :</p>
  
  <blockquote>
  <pre><code>&lt;jsp-descriptor&gt;
      &lt;keepgenerated&gt;true&lt;/keepgenerated&gt;
      &lt;debug&gt;true&lt;/debug&gt;
  &lt;/jsp-descriptor&gt;
  &lt;context-root&gt;/WinplexAdmin&lt;/context-root&gt;
  &lt;library-ref&gt;
      &lt;library-name&gt;jsf&lt;/library-name&gt;
      &lt;specification-version&gt;2.0&lt;/specification-version&gt;
      &lt;implementation-version&gt;1.0.0.0_2-0-2&lt;/implementation-version&gt;
  &lt;/library-ref&gt;
  &lt;container-descriptor&gt;
      &lt;prefer-web-inf-classes&gt;true&lt;/prefer-web-inf-classes&gt;
  &lt;/container-descriptor&gt;
  </code></pre>
  </blockquote>
  
  <p>What can be the problem here ?</p>