(javax.swing.SwingUtilities/invokeLater (fn []
  (let [frame (new javax.swing.JFrame "HelloWorldSwing")
        label (new javax.swing.JLabel "Hello World")]
    (.setDefaultCloseOperation frame javax.swing.JFrame/EXIT_ON_CLOSE)
    (.add (.getContentPane frame) label)
    (.pack frame)
    (.setVisible frame true))))