I tried to install I-don't-remember-what Java app years ago. The logging didn't work at all. The docs went on and on about how it used this standard, pluggable logging interface and you can plug any logging implementation into it, but as for how to get it to actually log something somewhere (hopefully to syslog, but that's doubtful), nobody seemed interested in that. I rm -rf'd the app and never allowed anything written in Java into the project again.