throw new IllegalArgumentException(getClass().getName() + ": ServiceBroker parameter should not be null");
if (log.isWarnEnabled()) { log.warn("ServiceBroker parameter is null"); }
  public BaseSecurityServiceProvider(ServiceBroker sb, String community) {    if (sb == null) {      throw new IllegalArgumentException(getClass().getName() +          ": ServiceBroker parameter should not be null");    }  	init(sb, community);  }