private void logError(String message, Throwable t) {
    if (t instanceof GemFireSecurityException) {
      securityLogger.error(message, t);
    } else {
      logger.error(message, t);
    }
  }
return a copy of the list of all server locations
geode-core/src/main/java/org/apache/geode/cache/client/internal/QueueManagerImpl.java