You could try use diagnostics, but this is appears to be specific to mod_perl, and diagnostics is only good for perl's internal errors.

Did you have Apache reload your modules after you changed them? Under mod_perl, it won't do it on its own.

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I wanted to explore how Perl's closures can be manipulated, and ended up creating an object system by accident.
-- Schemer

Note: All code is untested, unless otherwise stated