public void jButtonStart_actionPerformed(ActionEvent e) { GregorianCalendar now = new GregorianCalendar(); if (now.before(new GregorianCalendar(2005, 12, 31))) { jButtonStop.setEnabled(true); server = new Server(this); server.start(); // System.out.println(System.getProperty("sun.boot.class.path")); statusBar.setText("Server is running..."); jButtonStart.setEnabled(false); jButtonConfig.setEnabled(false); } else { JOptionPane.showMessageDialog( this, "Evaluation License has expired or is obsolete;\nplease contact vendor for renewal.", "License Error", JOptionPane.ERROR_MESSAGE); } }