Question

I came across code written by somebody which caught some exception and tried logging that as ERROR without printing stacktrace.
I expected below usage

log.error("message", exception);

However it was

log.error("message");

How to catch such coding errors by static code analyzers or any such tool?

Answer 1

You can use Eclipse and do a File Search over your Workspace with Regular Expression like this:

^.*\.(error|debug|info)\([^,]*\);$

This is the best option as you will see the results in the Search panel and be able to jump to the files/lines directly with double-click.

Also a simple editor like Notepad++ can do the job with its Find in Files option with Regular expressions enabled. Unfortunately, the Notepad++ is not able to do a regex OR like (this|that) so to find log.debug(...)s and log.info(...)s you would need to replace the error keyword manually. Just select the directory of your project and use a pattern like this:

^.*\.error\([^,]*\);$