@VisibleForTesting
  public static Configuration create(final LogLevelUpdateOccurs logLevelUpdateOccurs,
      final LogLevelUpdateScope logLevelUpdateScope) {
    return create(logLevelUpdateOccurs, logLevelUpdateScope,
        new LoggingProviderLoader().load());
  }
Protected by synchronization on Configuration instance.
geode-core/src/main/java/org/apache/geode/logging/internal/Configuration.java