code: private CmsContainerPageBean getContainerPageBean(CmsResource resource) throws CmsException {
  
          CmsXmlContainerPage xmlCnt = CmsXmlContainerPageFactory.unmarshal(m_cms, m_cms.readFile(resource));
          return xmlCnt.getContainerPage(m_cms);
      }
docs: Unmarshals the given resource.<p>
  
  @param resource the resource
  
  @return the container page bean
  
  @throws CmsException in case unmarshalling fails