Mac osx java application dock icon

dockicon.java

try {
    Class util = Class.forName("com.apple.eawt.Application");
    Method getApplication = util.getMethod("getApplication", new Class[0]);
    Object application = getApplication.invoke(util);
    Class params[] = new Class[1];
    params[0] = Image.class;
    Method setDockIconImage = util.getMethod("setDockIconImage", params);
    URL url = App.class.getClassLoader().getResource("icon.png");
    Image image = Toolkit.getDefaultToolkit().getImage(url);
    setDockIconImage.invoke(application, image);
} catch (ClassNotFoundException e) {
    // log exception
} catch (NoSuchMethodException e) {
    // log exception
} catch (InvocationTargetException e) {
    // log exception
} catch (IllegalAccessException e) {
    // log exception
}

it works . Thanks