The default log4j.xml uses the info.magnolia.cms.exchange category for logging into the separate magnolia-activation.log file, but this package is now only in core; the actual implementations happen in info.magnolia.module.exchangesimple.

Since the transactional activation module (EE) uses a different package structure, the log configuration should also be adapted for those - although since this is outside the default bundle, it's arguable whether we should do this in the default log4j file or not.