if (INITIALIZATION_STATE == UNINITIALIZED) {

   init.....

}

case ONGOING_INITIALIZATION:
      return SUBST_FACTORY;

//init failed cache "NoClassDefFoundError"
INITIALIZATION_STATE = NOP_FALLBACK_INITIALIZATION;

// code placeholder

synchronized public  Logger getLogger(String name) {
    SubstituteLogger logger = loggers.get(name);
    if (logger == null) {
        logger = new SubstituteLogger(name, eventQueue, postInitialization);
        loggers.put(name, logger);
    }
    return logger;
}

public void info(String msg) {
    delegate().info(msg);
}

Logger delegate() {
    if(_delegate != null) {   //_delegate== null forever
        return _delegate;
    }
    if(createdPostInitialization) {  createdPostInitialization == false forever
        return NOPLogger.NOP_LOGGER;
    } else {
        return getEventRecordingLogger();  
    }
}