code: public void movePath(final Path src, final FileSystem dstFs, final Path dst, final Optional<String> group) {
      movePath(src, dstFs, dst, false, group);
    }
docs: Move a {@link Path}.
  
  <p>
  This method submits a task to move a {@link Path} and returns immediately
  after the task is submitted.
  </p>
  
  @param src path to be moved
  @param dstFs the destination {@link FileSystem}
  @param dst the destination path
  @param group an optional group name for the destination path