@NotNull
  @Override
  public String getDefaultFilePath() {
    HierarchyBrowserManager.State state = HierarchyBrowserManager.getInstance(myHierarchyBrowserBase.myProject).getState();
    return state != null && state.EXPORT_FILE_PATH != null ? state.EXPORT_FILE_PATH : "";
  }
@NotNull
  @Override
  public String getDefaultFilePath()