if (!isFinite(value)) {
        sumOfSquaresOfDeltas = NaN;
      }
    } else {
      count++;
      if (isFinite(value) && isFinite(mean)) {
        // Art of Computer Programming vol. 2, Knuth, 4.2.2, (15) and (16)
        double delta = value - mean;
        mean += delta / count;
        sumOfSquaresOfDeltas += delta * (value - mean);
      } else {
        mean = calculateNewMeanNonFinite(mean, value);

  }

  /**
   * Returns the number of times {@link Cache} lookup methods have successfully loaded a new value.
   * This is usually incremented in conjunction with {@link #missCount}, though {@code missCount} is
   * also incremented when an exception is encountered during cache loading (see {@link
   * #loadExceptionCount}). Multiple concurrent misses for the same key will result in a single load

  }

  /**
   * Returns the number of times {@link Cache} lookup methods have successfully loaded a new value.
   * This is usually incremented in conjunction with {@link #missCount}, though {@code missCount} is
   * also incremented when an exception is encountered during cache loading (see {@link
   * #loadExceptionCount}). Multiple concurrent misses for the same key will result in a single load

	if err != nil && r.ContentLength != 0 {
		internalLogOnceIf(GlobalContext, err, "location-constraint-xml-parsing")
		// Treat all other failures as XML parsing errors.
		return "", ErrMalformedXML
	} // else for both err as nil or io.EOF
	location = locationConstraint.Location
	if location == "" {
		location = globalSite.Region()
	}
	if !isValidLocation(location) {
		return location, ErrInvalidRegion
	}

// otherwise returns false.
func (config *TierConfigMgr) IsTierValid(tierName string) bool {
	config.RLock()
	defer config.RUnlock()
	_, valid := config.isTierNameInUse(tierName)
	return valid
}

// isTierNameInUse returns tier type and true if there exists a remote tier by
// name tierName, otherwise returns madmin.Unsupported and false. N B this

	storageDisks := er.getDisks()

	// Read metadata associated with the object from all disks.
	partsMetadata, errs := readAllFileInfo(ctx, storageDisks, bucket, minioMetaMultipartBucket,
		uploadIDPath, "", false, false)

	readQuorum, writeQuorum, err := objectQuorumFromMeta(ctx, partsMetadata, errs, er.defaultParityCount)
	if err != nil {
		return fi, nil, err
	}

	if readQuorum < 0 {
		return fi, nil, errErasureReadQuorum

  static int unsafeCompare(
      @CheckForNull Comparator<?> comparator, @CheckForNull Object o1, @CheckForNull Object o2) {
    if (comparator == null) {
      return ((Comparable<@Nullable Object>) o1).compareTo(o2);
    } else {
      return ((Comparator<@Nullable Object>) comparator).compare(o1, o2);
    }
  }

  /**
   * A sensible definition of {@link #containsKey} in terms of the {@code firstKey()} method of

      if (i == 0) {
        // include some extra space for separators
        out = new StringBuilder(s.length() + 4 * format.wordSeparator.length());
        out.append(format.normalizeFirstWord(s.substring(i, j)));
      } else {
        requireNonNull(out).append(format.normalizeWord(s.substring(i, j)));
      }
      out.append(format.wordSeparator);
      i = j + wordSeparator.length();
    }
    return (i == 0)

        return artifact;
    }

    public List<String> findVersions(Artifact artifact) {
        return Collections.emptyList();
    }

    public boolean isProjectAware() {
        return false;
    }

    public Authentication getAuthentication() {
        return authentication;
    }

    public void setAuthentication(Authentication authentication) {
        this.authentication = authentication;

    assertFailsWith<Exception> {
      badPublicSuffixDatabase.getEffectiveTldPlusOne("squareup.com")
    }.also { e ->
      firstFailure = e
    }
    assertFailsWith<Exception> {
      badPublicSuffixDatabase.getEffectiveTldPlusOne("squareup.com")
    }.also { e ->
      assertEquals(firstFailure.toString(), e.toString())
    }
  }