for (int i = 0; i < summaryConfigs.size(); i++) { BMap summaryConfigStruct = (BMap) summaryConfigs.getBValue(i); StatisticConfig.Builder statisticBuilder = StatisticConfig.builder() .expiry(Duration.ofMillis(((BInteger) summaryConfigStruct .get(ObserveNativeImplConstants.EXPIRY_FIELD)).intValue()))