frame.add(this, BorderLayout.CENTER);
frame.getContentPane().add(this, BorderLayout.CENTER);
    private void layoutFrame() {        frame.setTitle(client.getName() + Messages.getString("ClientGUI.clientTitleSuffix")); //$NON-NLS-1$        frame.getContentPane().setLayout(new BorderLayout());        frame.add(this, BorderLayout.CENTER);        frame.validate();    }