@Override
    public String toString() {
        final int maxLen = 3;
        StringBuilder builder = new StringBuilder();
        builder.append("PointBuilder [dimensions=")
                .append(dimensions != null ? dimensions.subList(0, Math.min(dimensions.size(), maxLen)) : null)
                .append(", location=").append(location != null ? location.subList(0, Math.min(location.size(), maxLen)) : null)
                .append("]");
        return builder.toString();
    }
Create a new Point instance using the settings stored in this
PointBuilder. PointBuilder instances cannot be re-used after build() has
been invoked.

@return a Point instance reflecting this builder
container-core/src/main/java/com/yahoo/metrics/simple/PointBuilder.java