LogManager lm = LogManager.getLogManager();
Enumeration e = lm.getLoggerNames();
while (e.hasMoreElements())
{
	String loggerName = (String) e.nextElement();
	java.util.logging.Logger julLogger = lm.getLogger(loggerName);
	if (JULHelper.isRegularNonRootLogger(julLogger) && julLogger.getLevel() != null)
	{
		ch.qos.logback.classic.Logger logbackLog = (ch.qos.logback.classic.Logger) LoggerFactory.
			getLogger(julLogger.getName());
		julLogger.setLevel(JULHelper.asJULLevel(logbackLog.getLevel()));
	}
}