in usage-statistics-util/src/jetbrains/buildServer/usageStatistics/impl/providers/BaseDynamicUsageStatisticsProvider.java [51:59]
long getThresholdDate() {
long maxPeriod = 0;
for (final Long period: myPeriodDescriptions.keySet()) {
if (period > maxPeriod) {
maxPeriod = period;
}
}
return Dates.now().getTime() - maxPeriod;
}