There's also a problem with File::Find. Inside wanted it changes directory to the directory where the file is, so you should pass to addFile either absolute file name, or basename, but you're passing relative. It seems though, that Archive::Zip actually opens file later, so basenames will not work either. I recommend you not to invoke addFile from the wanted, but only build list of found files, and add them to the zip later.

PS Like this:

use Path::Class qw(file);
my @files;
find( \&wanted, $startdir );

sub wanted {
    my $file = file($File::Find::name);
    return unless -f $file->basename;
    push @files, $File::Find::name;
}

for (@files) {
    if (/\.zip/) {
        $zip->addFile($_)->desiredCompressionLevel(0);
    }
    else {
        $zip->addFile($_);
    }
}

$zip->writeToFileNamed('test.zip');
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