code: private void parseMappingDefinitions(BeanDefinitionBuilder builder, Element element) {
          HashMap<String, String> mappings = new HashMap<String, String>();
          for (Element matcher : DomUtils.getChildElementsByTagName(element, "mapping")) {
              mappings.put(matcher.getAttribute("path"), matcher.getAttribute("value"));
          }
  
          if (!mappings.isEmpty()) {
              builder.addPropertyValue("mappings", mappings);
          }
      }
docs: Parses all mapping definitions and adds those to the bean definition
  builder as property value.
  @param builder the target bean definition builder.
  @param element the source element.