Tips and tricks to hack
This page is collection of hopefully useful tips and tricks to develop with different approaches and tools.
The log file can be very helpful while developing - but it contains so much information that it might be too much. Often it makes sense to filter the log a bit.
tail -f catalina.out | grep -v --line-buffered --invert-match "^\t\(at\|\.\.\.\) " # --line-buffered option makes grep work on a line-by-line basis