thread start
Destroy A=HASH(0x10124254)
thread start
Destroy A=HASH(0x101254f4)
Destroy A=HASH(0x1002f054)

##</code><code>##

use threads;
use threads::shared;
{
    package A;
    use threads;
    use threads::shared;
    sub new {
        my $class = shift;
        my $self = &share({});
        return bless $self, $class;
    }
    sub get_s {
    }
    sub DESTROY {
        print "Destroy $_[0]\n";
    }
}

my $a  = &share(A->new());
for (1..2) {
    async {
        print "thread start\n";
        $a->get_s();
    }->join();
}