int assignDelimiter(int reps) {
    int dummy = 0;
    for (int i = 0; i < reps; i++) {
      StringBuilder sb = new StringBuilder();
      String delim = "";
      for (String comp : components) {
        sb.append(delim);
        sb.append(comp);
        delim = DELIMITER_STRING;
      }
      dummy ^= sb.toString().length();
    }
    return dummy;
  }

  /**

   * @param lim the limit of bytes to process encoded as a long as big-endian, or -1 to mean the max
   *     limit for numBytes
   */
  @GwtIncompatible // java.nio.charset.Charset
  private static void testBytes(int numBytes, long expectedCount, long start, long lim) {
    byte[] bytes = new byte[numBytes];
    if (lim == -1) {
      lim = 1L << (numBytes * 8);
    }

  int assignDelimiter(int reps) {
    int dummy = 0;
    for (int i = 0; i < reps; i++) {
      StringBuilder sb = new StringBuilder();
      String delim = "";
      for (String comp : components) {
        sb.append(delim);
        sb.append(comp);
        delim = DELIMITER_STRING;
      }
      dummy ^= sb.toString().length();
    }
    return dummy;
  }

  /**

   * @param lim the limit of bytes to process encoded as a long as big-endian, or -1 to mean the max
   *     limit for numBytes
   */
  @GwtIncompatible // java.nio.charset.Charset
  private static void testBytes(int numBytes, long expectedCount, long start, long lim) {
    byte[] bytes = new byte[numBytes];
    if (lim == -1) {
      lim = 1L << (numBytes * 8);
    }

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