@Override
  public int getAckSevereAlertThreshold() {
    return getConfig().getAckSevereAlertThreshold();
  }
@param isRmiClientCountZero the isJmxClientCountZero to set
@since GemFire 6.0
geode-core/src/main/java/org/apache/geode/admin/jmx/internal/AdminDistributedSystemJmxImpl.java