Imported Configuration can reference beans from Configuration that imported it

Test.java

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;

public class Test {

    public static void main(String[] args) {
        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(A.class);
        try {
            B bean = context.getBean(B.class);
            if(bean.c == null) {
                throw new IllegalStateException("Failed!");
            }
            else {
                System.out.println("SUCESS!!!!!!!!!!!!!!!!!!!");
            }
        } finally {
            context.close();
        }
    }

    @Import(B.class)
    @Configuration
    static class A {
        @Bean
        public C c() { return new C(); }
    }

    @Configuration
    static class B {
        @Autowired
        private C c;
    }

    static class C {}
}