// tests can successfully parse a number string with this radix.
      String maxAsString = max.toString(radix);
      assertThat(UnsignedLongs.parseUnsignedLong(maxAsString, radix)).isEqualTo(max.longValue());

      try {
        // tests that we get exception where an overflow would occur.
        BigInteger overflow = max.add(ONE);
        String overflowAsString = overflow.toString(radix);

      return (i == Integer.MIN_VALUE) ? null : i - 1;
    }

    @Override
    Integer offset(Integer origin, long distance) {
      checkNonnegative(distance, "distance");
      return Ints.checkedCast(origin.longValue() + distance);
    }

    @Override
    public long distance(Integer start, Integer end) {
      return (long) end - start;
    }

    @Override
    public Integer minValue() {

   */
  @GwtIncompatible // TODO
  @SuppressWarnings("fallthrough")
  public static int log10(BigInteger x, RoundingMode mode) {
    checkPositive("x", x);
    if (fitsInLong(x)) {
      return LongMath.log10(x.longValue(), mode);
    }

    int approxLog10 = (int) (log2(x, FLOOR) * LN_2 / LN_10);
    BigInteger approxPow = BigInteger.TEN.pow(approxLog10);
    int approxCmp = approxPow.compareTo(x);

    /*

            if (timeToLive != null) {
                // timeToLive minutes
                final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
                return new Date(now + timeToLive.longValue() * 1000 * 60);
            }
        }
        return documentExpires != null ? new Date(documentExpires) : null;
    }

    protected long getExpiredTime(final int days) {

        }
        final Long seqNo = esEntity.asDocMeta().seqNo();
        if (seqNo != null && seqNo.longValue() != SequenceNumbers.UNASSIGNED_SEQ_NO) {
            esEntity.asDocMeta().seqNo(seqNo);
        }
        final Long primaryTerm = esEntity.asDocMeta().primaryTerm();
        if (primaryTerm != null && primaryTerm.longValue() != SequenceNumbers.UNASSIGNED_PRIMARY_TERM) {
            esEntity.asDocMeta().primaryTerm(primaryTerm);

            return (T) Integer.valueOf(value.intValue());
        }
        if (clazz.equals(Long.class)) {
            final Number value = (Number) field;
            return (T) Long.valueOf(value.longValue());
        }
        return (T) field;
    }

    @Override
    public void iterate(final String sessionId, final AccessResultCallback<EsAccessResult> callback) {

                if (seqNo != null) {
                    builder.setIfSeqNo(seqNo.longValue());
                }
                if (primaryTerm != null) {
                    builder.setIfPrimaryTerm(primaryTerm.longValue());
                }
                response = builder.execute().actionGet(fessConfig.getIndexIndexTimeout());
            }

        if (done) {
            buf.append('\t').append("done:").append(getCurrentTimeMillis() - begin);
        }
        data.entrySet().stream().map(e -> escapeValue(e.getKey()) + ":" + (e.getValue().longValue() - begin)).map(s -> "\t" + s)
                .forEach(s -> buf.append(s));
        log(buf);
    }

    public void runOnThread(final Object keyObj) {
        getCacheKey(keyObj).ifPresent(key -> {

        }
        final Long seqNo = esEntity.asDocMeta().seqNo();
        if (seqNo != null && seqNo.longValue() != SequenceNumbers.UNASSIGNED_SEQ_NO) {
            esEntity.asDocMeta().seqNo(seqNo);
        }
        final Long primaryTerm = esEntity.asDocMeta().primaryTerm();
        if (primaryTerm != null && primaryTerm.longValue() != SequenceNumbers.UNASSIGNED_PRIMARY_TERM) {
            esEntity.asDocMeta().primaryTerm(primaryTerm);

        }
        final Long seqNo = esEntity.asDocMeta().seqNo();
        if (seqNo != null && seqNo.longValue() != SequenceNumbers.UNASSIGNED_SEQ_NO) {
            esEntity.asDocMeta().seqNo(seqNo);
        }
        final Long primaryTerm = esEntity.asDocMeta().primaryTerm();
        if (primaryTerm != null && primaryTerm.longValue() != SequenceNumbers.UNASSIGNED_PRIMARY_TERM) {
            esEntity.asDocMeta().primaryTerm(primaryTerm);