我在 ServiceMix Container 中部署了一个 OSGI Bundle (B)。B 还充当 OSGI 端点。我们可以看到以下行（来自我的 ApplicationContext.xml）
<osgi:service id="SampleManagementService" ref="ManagementService" interface="com.abc.webservice.xyz.ISampleManagementService"/>
现在，我在同一个 servicemix 容器中部署了另一个 Bundle (C)，并且 C 想要使用从 B 公开的 OSGI 服务。所以我在 Bundle C 的 applicationContext 中添加了以下行。
<osgi:reference id="SampleManagementService" interface="com.abc.webservice.xyz.ISampleManagementService"/>
到目前为止，一切都很好。现在我在 Bundle C 中编写了一个 JUNIT 测试用例，它尝试在执行测试用例之前加载它的 applicationContext.xml。这是我的测试类的片段：
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"/META-INF/spring/camel-context.xml"})
public class TimerTest {
//some logic to execute the test.
}
每当我尝试运行这个单元测试用例时，我都会得到java.lang.IllegalStateException:。这太笼统了，无法为我提供有关该问题的任何线索。
这是我在控制台中看到的异常的堆栈跟踪：
main] TestContextManager ERROR Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@1526ea43] to prepare test instance [com.abc.sms.webservice.test.TimerTest@2ddddf8e]
java.lang.IllegalStateException: Failed to load ApplicationContext
at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:308) [spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:109)[spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75)[spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:321)[spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:220)[spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:301)[spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)[junit-4.7.jar:]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:303)[spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)[spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)[junit-4.7.jar:]
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)[junit-4.7.jar:]
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)[junit-4.7.jar:]
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)[junit-4.7.jar:]
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)[junit-4.7.jar:]
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)[junit-4.7.jar:]
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)[spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)[spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)[junit-4.7.jar:]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)[spring-test-3.0.5.RELEASE.jar:3.0.5.RELEASE]
我不确定是什么导致了这个问题。我尝试从 POM.xml 中删除 JARS，但这也有帮助。我还在 Stackoverflow 中寻找了类似的问题，但其中大多数都是通过更改我的测试类中的 Application-Context.xml 的类路径来回答的，这肯定不是我的情况。一旦我从 Bundle C中删除<osgi:reference> ，我的测试就会成功运行。
任何建议都会有所帮助。谢谢。