MessageProvider is null

[CheapLaoo]

This is the SpringConfiguration

@Configuration
public class SpringConfiguration {

    @Bean
    public MessageProvider messageProvider() {
        return new HelloMessageProvider();
    }
    @Bean
    public SpringPluginManager pluginManager() {
        return new SpringPluginManager();
    }

    @Bean
    @DependsOn("pluginManager")
    public Greetings greetings() {
        return new Greetings();
    }

}

This is the main method

 public static void main(String[] args) {
    // print logo
    printLogo();

    // retrieves the spring application context
    ApplicationContext applicationContext = new AnnotationConfigApplicationContext(SpringConfiguration.class);

    MessageProvider messageProvider = applicationContext.getBean(MessageProvider.class);

    // retrieves automatically the extensions for the Greeting.class extension point
    Greetings greetings = applicationContext.getBean(Greetings.class);
    greetings.printGreetings();

    // stop plugins
    PluginManager pluginManager = applicationContext.getBean(PluginManager.class);
    /*
    // retrieves manually the extensions for the Greeting.class extension point
    List<Greeting> greetings = pluginManager.getExtensions(Greeting.class);
    System.out.println("greetings.size() = " + greetings.size());
    */
    pluginManager.stopPlugins();
}

However the MessageProvider is null 。 Help plz

[decebals]

Can you run demo script from command line (run-demo.sh for linux or run-demo.bat for windows) and share the result?

[decebals]

Any news?