public static String[] getSeparatorsFromContributors(ChooseByNameContributor[] contributors) {
    final Set<String> separators = new HashSet<>();
    separators.add(".");
    for(ChooseByNameContributor c: contributors) {
      if (c instanceof GotoClassContributor) {
        ContainerUtil.addIfNotNull(separators, ((GotoClassContributor)c).getQualifiedNameSeparator());
      }
    }
    return ArrayUtilRt.toStringArray(separators);
  }
public static String[] getSeparatorsFromContributors(ChooseByNameContributor[] contributors)