/** XML element name for start URLs configuration. */
    protected static final String START_URLS = "start_urls";

    /** XML element name for good (included) URLs configuration. */
    protected static final String GOOD_URLS = "good_urls";

    /** XML element name for bad (excluded) URLs configuration. */
    protected static final String BAD_URLS = "bad_urls";

    /** Array of supported web protocols for URL classification. */

      return obj instanceof BadEqualsWithParameterizedType;
    }

    @Override
    public int hashCode() {
      return 0;
    }
  }

  static class GoodNulls {
    public GoodNulls(String s) {
      checkNotNull(s);
    }

    public void rejectNull(String s) {
      checkNotNull(s);
    }
  }

  public static class BadNulls {