@Override
  public boolean showAndGet() {
    final BooleanValueHolder result = new BooleanValueHolder(false);
    UnindexedFilesScannerExecutor.getInstance(myProject).suspendScanningAndIndexingThenRun(ExternalSystemBundle.message("activity.name.select.external.data"),
      () -> result.setValue(super.showAndGet())
    );
    return result.getValue();
  }
@Override
  public boolean showAndGet()