formatting: the JavaDoc could be spaced over slightly like:

```
/**
 * Report a metric with a name, unit(s) and value.
 * The count is assumed to be 1, while minValue and maxValue are set to value.
 * Sum of squares is calculated as the value squared.
 * If the value is null, the reporting is skipped.
 * @param metricName the name of the metric
 * @param units the units to report
 * @param value the Number value to report
 */
```