The following example forks for me: 
package KLARF;
use strict;
use warnings; 
use base qw(Class::Accessor);

my $s = 'foo';

my $x = bless {};

$x->{$s} = 'bar';
KLARF->mk_accessors($s);

print $x->foo(), "\n";

[download]

So there doesn't seem to be a problem with generating the accessors at run time.

Maybe $key doesn't contain what you think it does? Since you only print out the upper cased version, maybe the case is wrong? Or it could contain non-printable characters.

Since you neither show nor input data nor how the methods are called it's a bit hard to find out what's really going on.

Anyway, do you really think you need these accessors? generating identical methods based on input data seems like not a really great idea, a hash or a generic accessor might be a better idea.

In reply to Re: Dynamic Method Generation Using Class::Accessor by moritz
in thread Dynamic Method Generation Using Class::Accessor by ~~David~~

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