jodd-log/src/main/java/jodd/log/LoggerFactory.java
public static Logger getLogger(final String name) {
		if (loggers == null) {
			return loggerProvider.apply(name);
		}
		return loggers.computeIfAbsent(name, loggerProvider);
	}
public static Logger getLogger(final String name) {
		if (loggers == null) {
			return loggerProvider.apply(name);
		}
		return loggers.computeIfAbsent(name, loggerProvider);
	}
Returns logger for given name. Repeated calls to this method with the
same argument should return the very same instance of the logger.