Simply install this bundle in addition to de.mnl.osgi.lf4j and you
can use the log4j
LogManager as you're used to. As this
implementation shares everything "behind the facade" with LFOSGi,
it also shares its configuration options.
Starting with version 1.1.0, the log4j provider is registered as service and found and added by the log4j utility class for OSGi.