From this question: http://stackoverflow.com/questions/2621701/setting-log-level-of-message-at-runtime-in-slf4j

I understand the it's currently impossible to configure SLF4J's log level's at runtime. I don't fully understand the reasons for this. This is the first thing that I tried to do with SLF4J 10 minutes after integrating it - I would like to reduce the clutter I'm getting when running unit tests, and I would prefer to do this via code and not external configuration files.