Sorry for the delay. I tried the same thing with Perl 5.6, RedHat Linux 7.1. After I saw that something wasn't working, I changed the lines

sub send_data
{
    my ($self, $connection) = @_;
    my $address = eval{$$connection->peerhost};
    my $port = eval{$$connection->peerport};
    $$connection->close;
    my $sock = IO::Socket::INET->new(
                                       Proto    => 'tcp',
                                       PeerAddr => $address,
                                       PeerPort => $port
                                     ) or Carp::confess $@; # <- this 
+used to be die $!
    $sock->autoflush(1);
       syswrite($sock, $self->{data}, length($self->{data}));
    $sock->close;
}
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And get the following error :

IO::Socket::INET: Timeout at Shared.pm line 251
    Shared::Local::send_data('HASH(0x812e004)', 'SCALAR(0x821e260)') c
+alled at Shared.pm line 233
    Shared::Local::new('Shared::Local', 'name', 'new_shared', 'accept'
+, 'ARRAY(0x812decc)') called at test.pl line 5
 at Shared.pm line 394
    Shared::Retriever::retrieve('Shared::Retriever=HASH(0x80f7acc)', '
+Shared::Local=HASH(0x812e004)') called at test.pl line 12
[me@myhost me]$
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while $@ contains "timeout", I'm not sure if it's being able to find the Server Socket opened by the Retriever. This also left a zombie process in the background.