final Map<String, ResourceStatistics> uriStats = Collections.unmodifiableMap(
Maps.transformValues(uriStatistics, BUILDING_FUNCTION));
final Map<Class<?>, ResourceStatistics> classStats = Collections.unmodifiableMap(
Maps.transformValues(resourceClassStatistics, BUILDING_FUNCTION));
final ExecutionStatistics requestStats = requestStatisticsBuilder == null ?
ExecutionStatisticsImpl.EMPTY : requestStatisticsBuilder.build();
return new MonitoringStatisticsImpl(
uriStats, classStats, requestStats,
responseStatisticsBuilder.build(),