I have an web-app that has logback.xml inside the WAR.
This xml configures the context name, gets some enviroment variables and then includes another file with the logging loggers and appenders.
When I modify the included config logback stops logging. Neither reloads the modified file, I guess.

Logback is prepared to watch not only the main config file, also the included files.

Websphere 7, Java 6, Red Hat