code: public static Option repositories(final String... repositoryUrls) {
          validateNotEmptyContent(repositoryUrls, true, "Repository URLs");
          final List<RepositoryOption> options = new ArrayList<RepositoryOption>();
          for (String repositoryUrl : repositoryUrls) {
              options.add(repository(repositoryUrl));
          }
          return repositories(options.toArray(new RepositoryOption[options.size()]));
      }
docs: Creates a composite option of {@link RepositoryOption}s.
  
  @param repositoryUrls
  Maven repository URLs
  
  @return composite option of repository options
  
  @throws IllegalArgumentException
  - If urls array is null or contains null entries