if (tray == null)
{
try
{
tray = SystemTray.getSystemTray();
participantIndicator = new IOverlayIcon(getIcon("icon24"));
participantIndicator.addOverlay("message", 0, 12);
participantIndicator.addIcon("message", "new", new ImageIcon(getClass().getResource(
"/resources/emblem-message-12.png")));