class CollectionUtils {

  public static Map<String, String> toStringMap(String... pairs) {
    Map<String, String> parameters = new HashMap<String, String>();
    if (pairs.length > 0) {
      if (pairs.length % 2 != 0) {
        throw new IllegalArgumentException("pairs must be even.");
      }
      for (int i = 0; i < pairs.length; i = i + 2) {
        parameters.put(pairs[i], pairs[i + 1]);
      }
    }
    return parameters;
  }

  private  CollectionUtils();

}