public static Builder newBuilder(Class<?> loggingClass) {
    if (loggingClass == null) throw new NullPointerException("loggingClass == null");
    return new Builder(LoggerFactory.getLogger(loggingClass.getName()));
  }
Needed to scope this to the correct logging category
zipkin-collector/core/src/main/java/zipkin2/collector/Collector.java