I'm writing a CGI::Application that runs under Apache::Registry and as a regular CGI script. Running just as a CGI, everything works fine, no warnings, no issues with strict, etc. However, when all I do is turn on Apache::Registry handling, I get the following in the error_log: 
null: substr outside of string at (eval 234) line 1.
null: Use of uninitialized value in pattern match (m//) at (eval 234) 
+line 1.

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Is there any way to get more verbose error reporting than this? I've got four or five modules, and in the one I where I think the error is occuring, line 234 is blank. I've also tried $string ||= "not null anymore" before all of my pattern matching, but to no avail. Any ideas?

In reply to Tracking down an error in a mod_perl script by jgallagher

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