code: public ResultMatcher isAbsent() {
          return new AbstractResultMatcher(path, configuration) {
              public void doMatch(Object actual) {
                  if (!nodeAbsent(actual, path, configuration)) {
                      failWithMessage("Node \"" + path + "\" is present.");
                  }
              }
          };
      }
docs: Fails if the node exists.
  
  @return