SpringBoot @ImportTestcontainers doesn't work

According to https://docs.spring.io/spring-boot/docs/3.1.0-RC2/reference/htmlsingle/#features.testing.testcontainers We could declare @Container as static field then use @ImportTestcontainers, but the following test fails, am I missed something?

package com.example.demo;

import static org.assertj.core.api.Assertions.assertThat;

import javax.sql.DataSource;

import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.TestConfiguration;
import org.springframework.boot.testcontainers.context.ImportTestcontainers;
import org.testcontainers.containers.MySQLContainer;
import org.testcontainers.junit.jupiter.Container;

import com.zaxxer.hikari.HikariDataSource;

@SpringBootTest
public class ApplicationTests {

    @Autowired
    private DataSource dataSource;

    @Test
    void test() {
        assertThat(dataSource).isInstanceOfSatisfying(HikariDataSource.class,
                ds -> assertThat(ds.getJdbcUrl()).startsWith("jdbc:mysql://"));
    }

    @TestConfiguration
    @ImportTestcontainers(Containers.class)
    static class Config {

    }

    interface Containers {

        @Container
        MySQLContainer<?> mySQLContainer = new MySQLContainer<>("mysql:5.7");

    }

}

plugins {
    id 'java'
    id 'org.springframework.boot' version '3.1.0-RC2'
    id 'io.spring.dependency-management' version '1.1.0'
}

group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '17'

repositories {
    mavenCentral()
    maven {
        url "https://repo.spring.io/milestone"
    }
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
    testImplementation 'org.springframework.boot:spring-boot-testcontainers'
    testImplementation 'org.testcontainers:junit-jupiter'
    testImplementation 'org.testcontainers:mysql'
    testRuntimeOnly 'com.h2database:h2'
    testRuntimeOnly 'com.mysql:mysql-connector-j'
}

tasks.named('test') {
    useJUnitPlatform()
}

Comment From: quaff

Superseded by https://github.com/spring-projects/spring-boot/pull/35333