code: public static String generateSecureRandomId() {
          val generator = getNativeInstance();
          val charMappings = new char[]{
              'a', 'b', 'c', 'd', 'e', 'f', 'g',
              'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
              'p'};
  
          val bytes = new byte[SECURE_ID_BYTES_LENGTH];
          generator.nextBytes(bytes);
  
          val chars = new char[SECURE_ID_CHARS_LENGTH];
          IntStream.range(0, bytes.length).forEach(i -> {
              val left = bytes[i] >> SECURE_ID_SHIFT_LENGTH & HEX_HIGH_BITS_BITWISE_FLAG;
              val right = bytes[i] & HEX_HIGH_BITS_BITWISE_FLAG;
              chars[i * 2] = charMappings[left];
              chars[i * 2 + 1] = charMappings[right];
          });
          return String.valueOf(chars);
      }
docs: Generate secure random id string.
  
  @return the string