This inspection will not report any catch parameters named "ignore" or "ignored". Conversely this inspection will warn on any catch parameters named "ignore" or "ignored" that are actually used. Also catch parameters named "expected" or "ok" are not reported inside test sources.
For empty catch blocks an additional fix to generate the catch body is suggested. You can modify the "Catch Statement Body" template in Settings | Editor | File and Code Templates (see the "Code" tab).
New in 2018.1