use Inline (
  Java => 'STUDY',
  STUDY => [ qw(javax.swing.JFrame javax.swing.JLabel java.awt.Container) ]
);


my $f = javax::swing::JFrame->new;

my $l = javax::swing::JLabel->new("Hello World");

$f->getContentPane->add($l);
$f->pack;
#$f->setVisible