Some web applications generate lots of exceptions and dump exaggerated amounts of stacktraces. i’ve wrote a small script in perl that parses catalina.out and can remove or shorten those stacktraces and also prove some syntax highlight.
Start clog with:
Check the last 100 lines from the log:
$ clog 100
If you want only to see the first five lines of the stacktrace:
$ clog -st 5
If you want to see the full stacktrace:
$ clog -e 100
The code is available here.