pos = SwingUtilities.convertPoint( lastComponent, pos.x, pos.y, comp );
pos = convertPoint( lastComponent, pos.x, pos.y, comp );
    private void sendEnteredEvent( Component comp, Component lastComponent, int buttonMask, Point pos ) {        if ( comp != null && comp != lastComponent ) {            sendEnteredEvent( comp.getParent(), lastComponent, buttonMask, pos );            pos = SwingUtilities.convertPoint( lastComponent, pos.x, pos.y, comp );            final MouseEvent event = new MouseEvent( comp,                    MouseEvent.MOUSE_ENTERED,                    System.currentTimeMillis(), buttonMask, pos.x, pos.y, 0, false, 0 );            dispatchEvent( comp, event );        }    }