private void logSupplierError(final Throwable throwable, int statId, Object supplier) {
    if (flakySuppliers.add(supplier)) {
      statisticsLogger.logWarning("Error invoking supplier for stat {}, id {}", getTextId(), statId,
          throwable);
    }
  }
@return the number of statistics that are measured using supplier callbacks
geode-core/src/main/java/org/apache/geode/internal/statistics/StatisticsImpl.java