code: public RepositoryFile getRepositoryFile() throws ResourceException {
          if (_fileRef == null || _fileRef.get() == null) {
              throw new ResourceException(this, "RepositoryFile '" + _qualifiedPath
                      + "' is not available since it was not serializable. The RepositoryFileResource instance can "
                      + "be recreated using a live repository and the qualified path of the file.");
          }
          return _fileRef.get();
      }
docs: Gets the underlying {@link RepositoryFile}.
  
  @return