code: public String toXML()
      {
          String eol = SystemUtils.LINE_SEPARATOR;
          StringBuffer buf = new StringBuffer();
  
          // write all ClassDescriptors
          Iterator i = this.iterator();
          while (i.hasNext())
          {
              buf.append(((XmlCapable) i.next()).toXML() + eol);
          }
          return buf.toString();
      }
docs: /*
  @see XmlCapable#toXML()