How to FORCE update logback's configure file

gistfile1.java

public void updateConfigure() throws JoranException {
	LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
	ContextInitializer ci = new ContextInitializer(loggerContext);
		
	JoranConfigurator configurator = new JoranConfigurator();
	configurator.setContext(loggerContext);
	loggerContext.reset();
	configurator.doConfigure(ci.findURLOfDefaultConfigurationFile(false));
}