code: private synchronized void issueTaggingFailedMessage(int returnCode) {
          if (taggingFailedIssued) {
              return;
          }
  
          System.err.println(MessageFormat.format(BootstrapConstants.messages.getString("warn.unableTagFile"), returnCode));
          taggingFailedIssued = true;
      }
docs: Issue the tagging failed message.