Set logging programmatically (Logback and slf4j)

LoggerService.java

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
import org.slf4j.LoggerFactory;
import java.util.List;

public final class LoggerService {

    private static final org.slf4j.Logger logger = LoggerFactory.getLogger(LoggerService.class);

    public static void setLogLevel(final Level level) {
        LoggerContext loggerContext = ((ch.qos.logback.classic.Logger) logger).getLoggerContext();
        List<Logger> loggerList = loggerContext.getLoggerList();
        for (ch.qos.logback.classic.Logger logger : loggerList) {
            logger.setLevel(level);
        }
    }
}

module-info.java

module com.xxx.mymodule {
    requires org.slf4j;
    requires logback.core;
    requires logback.classic;
}