How to test SpringBoot graseful shutdown?

My goal is to test spring-boot actuator call to shutdown my application.

I've written the following test:

@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
class MyAppTest {

  private static final String SHUTDOWN_URL = "/actuator/shutdown";

  @Autowired
  protected TestRestTemplate restTemplate;

  @Autowired
  protected ConfigurableApplicationContext ctx;

  @Test
  @DirtiesContext(methodMode = DirtiesContext.MethodMode.AFTER_METHOD)
  void applicationShutsDown() throws URISyntaxException {
    RequestEntity<Void> request = RequestEntity.post(new URI(SHUTDOWN_URL)).contentType(MediaType.APPLICATION_JSON).build();
    ResponseEntity<Void> response = restTemplate.exchange(request, Void.class);

    assertThat(response.getStatusCode()).isSameAs(HttpStatus.OK);

    await().atMost(Duration.ofSeconds(30))
        .until(() -> !ctx.isActive() && !ctx.isRunning());
  }
}

I see that this test passes just fine. But after test execution, I'm getting the error below.

As a result, the test is marked as failed, despite the fact that all assertions are successful.

java.lang.IllegalStateException: The ApplicationContext loaded for [[WebMergedContextConfiguration@eda25e5 testClass = MyAppTest, locations = '{}', classes = '{class com.mytest.MyAppTest}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true, server.port=0}', contextCustomizers = set[org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@4bdeaabb, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@71075444, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.web.client.TestRestTemplateContextCustomizer@5745ca0e, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@4d15107f, org.springframework.boot.test.context.SpringBootTestArgs@1], resourceBasePath = 'src/main/webapp', contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]]] is not active. This may be due to one of the following reasons: 1) the context was closed programmatically by user code; 2) the context was closed during parallel test execution either according to @DirtiesContext semantics or due to automatic eviction from the ContextCache due to a maximum cache size policy.

    at org.springframework.util.Assert.state(Assert.java:97)
    at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:127)
    at org.springframework.test.context.TestContext.publishEvent(TestContext.java:94)
    at org.springframework.test.context.event.EventPublishingTestExecutionListener.afterTestExecution(EventPublishingTestExecutionListener.java:129)
    at org.springframework.test.context.TestContextManager.afterTestExecution(TestContextManager.java:379)
    at org.springframework.test.context.junit.jupiter.SpringExtension.afterTestExecution(SpringExtension.java:129)