oldFocusPeer.paintAWTComponent();
    public final void requestFocus() {        jComponent.requestFocus();        // save old focus component		SwingComponentPeer oldFocusPeer;		Component fc = toolkit.getFocusHandler().getFocusedComponent();		if (fc != null) {			oldFocusPeer = (SwingComponentPeer) fc.getPeer();		} else {			oldFocusPeer = null;		}		// set new focus		toolkit.getFocusHandler().setFocusedComponent((Component) component);		// redraw new and (if necessary) old focus component		// Note that Window derived classes can also request		// focus, but are not traversable to focus.		if (oldFocusPeer != null && oldFocusPeer.isFocusTraversable()) {			oldFocusPeer.paintAWTComponent();		}		if (isFocusTraversable()) {			paintAWTComponent();		}    }