import ch.qos.logback.classic.LoggerContext;
import org.slf4j.LoggerFactory;

import java.net.MalformedURLException;
import java.net.URL;

public class Main {
    public static void main(String[] args) {
        LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
        lc.setPackagingDataEnabled(true);
        try {
            new URL("foo");
        } catch (MalformedURLException e) {
            LoggerFactory.getLogger("com.example.Main").warn("An exception!", e);
        }
    }
}