code: public void error(DocTreePath path, String key, Object... args) {
          report(ERROR, path, resources.getText(key, args));
      }
docs: Reports an error message to the doclet's reporter.
  
  @param path a path identifying the position to be included with
  the message
  @param key the name of a resource containing the message to be printed
  @param args optional arguments to be replaced in the message.