How to render Splash screen before everything else?

Question

I'm using code from both:

https://www.eclipse.org/forums/index.php/t/328812/5ceed4bcaa683a94d65efb161bffd217/

https://www.vogella.com/tutorials/Eclipse4LifeCycle/article.html

In my LifecycleManager class, I have:

   @PostContextCreate
void postContextCreate(IApplicationContext appContext, Display display) {
    SplashService splashService = new SplashService();
    splashService.open();
    // ...
}

However, this dialog only opens when the main eclipse application opens up, and not beforehand. Is there something else I need to provide so that it does not wait for all the other items come up?