java – Junit – 通过注释加载Spring XML配置

当我运行以下测试时,加载Spring应用程序上下文失败：

@RunWith(CamelSpringJUnit4ClassRunner.class)
@BootstrapWith(CamelTestContextBootstrapper.class)
@ContextConfiguration(locations=
            {
                "classpath:com/me/someFile.xml","classpath:META-INF/spring/someFile.xml"
            })
public class MyRouteTest extends CamelTestSupport
{
    //...
}

以下是我得到的例外情况：

Caused by: java.lang.IllegalArgumentException: Cannot find RouteContext with id someRoute
    at org.apache.camel.model.RouteContextRefDefinitionHelper.lookupRoutes(RouteContextRefDefinitionHelper.java:65)

但是当我运行此测试时,Spring应用程序上下文成功加载：

public class MyRouteTest extends CamelSpringTestSupport
{
    @Override
    protected AbstractApplicationContext createApplicationContext()
    {
        return new ClassPathXmlApplicationContext(new String[]
                {
                    "classpath:com/me/someFile.xml","classpath:META-INF/spring/someFile.xml"
                });
    }

    //...
}

为什么在第一种情况下会失败？

这两种方式加载Spring应用程序上下文不等同吗？