为什么我得到java.lang.IllegalStateException：无法加载ApplicationContext？

Question

我正在尝试通过以下程序获取代码：https://codenotfound.com/spring-jms-listener-example.html

尝试运行测试类时，我不断收到以下错误消息：

java.lang.IllegalStateException: Failed to load ApplicationContext

package customer;

import static org.assertj.core.api.Assertions.assertThat;
import java.util.concurrent.TimeUnit;
import org.apache.activemq.junit.EmbeddedActiveMQBroker;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.jms.listener.DefaultMessageListenerContainer;
import org.springframework.jms.listener.SimpleMessageListenerContainer;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringRunner;

import customer.jms.Sender;
import customer.jms.StatusMessageListener;

@RunWith(SpringRunner.class)
@SpringBootTest
@DirtiesContext
public class SpringJmsApplicationTest {

    @ClassRule
    public static EmbeddedActiveMQBroker broker = new EmbeddedActiveMQBroker();

    @Autowired
    private Sender sender;

    @Autowired
    private DefaultMessageListenerContainer dmlc;

    @Autowired
    private SimpleMessageListenerContainer smlc;

    @Test
    public void testReceive() throws Exception {
        sender.send("order-002");

        StatusMessageListener status1MessageListener = (StatusMessageListener) dmlc.getMessageListener();
        status1MessageListener.getLatch().await(10000, TimeUnit.MILLISECONDS);
        assertThat(status1MessageListener.getLatch().getCount()).isEqualTo(0);
    }
}