code: public List<ServletMappingType<WebAppDescriptor>> getAllServletMapping()
     {
        List<ServletMappingType<WebAppDescriptor>> list = new ArrayList<ServletMappingType<WebAppDescriptor>>();
        List<Node> nodeList = model.get("servlet-mapping");
        for(Node node: nodeList)
        {
           ServletMappingType<WebAppDescriptor>  type = new ServletMappingTypeImpl<WebAppDescriptor>(this, "servlet-mapping", model, node);
           list.add(type);
        }
        return list;
     }
docs: Returns all <code>servlet-mapping</code> elements
  @return list of <code>servlet-mapping</code>