Spring boot ServeletInitializer and Spring Security

I have 2 configuration files. One is the Spring Boot application

@SpringBootApplication
public class Application extends SpringBootServletInitializer {

    public static void main(String[] args) {
        ApplicationContext ctx = SpringApplication.run(Application.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);
    }
    ...
   }

And the Spring Security Config. it appears it isn't working. whenever I access localhost:8080 it asks for my username and password. Which I believe I configured in the auth.inMemoryAuthentication().withUser("user").password("password").roles("USER")

@Configuration
@EnableWebSecurity
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter{
    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth
            .inMemoryAuthentication()
            .withUser("user").password("password").roles("USER");
    }
}

but it displays invalid credentials, is there anyway to validate this?