Here is an example of how to use the ConfigurationWatchListUtil class from the Logback library:

import ch.qos.logback.core.joran.util.ConfigurationWatchListUtil;
import java.io.File;

public class MyClass {
    public static void main(String[] args) {
        // Assuming that the file "logback.xml" is in the current directory
        File configFile = new File("logback.xml");
        ConfigurationWatchListUtil.setMainWatchURL(configFile.toURI().toURL());
    }
}

This code sets the main configuration file to be watched for changes by Logback.

When the configuration file is changed, Logback will automatically reconfigure itself. The class ConfigurationWatchListUtil is responsible for maintaining a list of files that must be watched.

Please keep in mind that the ConfigurationWatchListUtil is intended to be used internally by logback, you would not typically use this class directly, it is used by the framework internally to check if the config files have changed and to reload them if required.