ets-berkeley-edu/calcentral — pull request #115 by raydavis (2012-09-24 22:38:44+00:00)
Title: NOJIRA Enable live changes to log4j.properties

"target/classes/log4j.properties" will be checked every 10 seconds.
Commented-out lines have no effect. To revert a changed level, change it back explicitly.

In other words, if you set:

log4j.rootCategory=INFO, console
log4j.logger.org.springframework=DEBUG

and you want Spring to quiet down again, you need to use:

log4j.rootCategory=INFO, console
log4j.logger.org.springframework=INFO

not:

log4j.rootCategory=INFO, console
#log4j.logger.org.springframework=DEBUG