code: protected void initialize(XmlParser.Node config) throws ClassNotFoundException,UnavailableException
      {
          Iterator iter=config.iterator();
          XmlParser.Node node=null;
          while(iter.hasNext())
          {
              try
              {
                  Object o=iter.next();
                  if(!(o instanceof XmlParser.Node))
                      continue;
                  node=(XmlParser.Node)o;
                  String name=node.getTag();
                  initWebXmlElement(name,node);
              }
              catch(ClassNotFoundException e)
              {
                  throw e;
              }
              catch(Exception e)
              {
                  log.warn("Configuration problem at "+node,e);
                  throw new UnavailableException("Configuration problem");
              }
          }
      }
docs: /* ------------------------------------------------------------