@Override
    protected boolean canGoUrl() {
      try {
        FileObject parent = currentLocation.getParent();
        return parent != null && VFSUtils.canGoUrl(parent);
      } catch (FileSystemException e) {
        LOGGER.error("Can't get parent of current location", e);
      }
      return false;
    }
Caller responsible for ensuring called from EDT.
We purposefully do not update UI other than indirectly reflecting
the selection.
Current use case is that we are finished with the browser window.
olv-vfs/src/main/java/pl/otros/vfs/browser/VfsBrowser.java