I'm currently fiddling with a project where the logging is configured in a property file with "categories". As far as I know, a Category is Log4J 1.1-Speak, and so I'm looking for documentation or an old tutorial about Log4J 1.1.
The reason behind this is that a third party framework was introduced to this project some time ago which currently starts throwing exceptions. The framework maintainers advised us to configure logging properly and gave us an example for their framwork in Log4J 1.2-speak. So far I have been unsuccessfull in backporting the "new" configuration to fit in the old logging system and its configuration, most probably because I miss the log4j.rootlogger property in the old-style configuration.