这个是内部类吗？该怎么处理

public class LoggerFactory {
    static {
        try {
            URL resourceURL = LoggerFactory.class
                    .getResource("/log4j.properties");
            if(resourceURL != null) {
                PropertyConfigurator.configure(resourceURL);
            } else {
                PropertyConfigurator.configure("log4j.properties");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static Logger getLogger(String logName) {
        Logger logger = Logger.getLogger(logName);
        return logger;
    }

    public static Logger getLogger(final Class<?> clazz) {
        String className = clazz.getName();
        return getLogger(className);
    }

}