我正在尝试使用 pax-exam-container-karaf 来测试 OSGi 包。运行测试时，测试“挂起”几分钟然后“死亡”，但有以下异常：
java.lang.RuntimeException: Cannot get the remote bundle context
at org.ops4j.pax.exam.rbc.client.intern.RemoteBundleContextClientImpl.getRemoteBundleContext(RemoteBundleContextClientImpl.java:255)
at org.ops4j.pax.exam.rbc.client.intern.RemoteBundleContextClientImpl.waitForState(RemoteBundleContextClientImpl.java:211)
at org.ops4j.pax.exam.karaf.container.internal.KarafTestContainer.waitForState(KarafTestContainer.java:528)
at org.ops4j.pax.exam.karaf.container.internal.KarafTestContainer.startKaraf(KarafTestContainer.java:214)
at org.ops4j.pax.exam.karaf.container.internal.KarafTestContainer.start(KarafTestContainer.java:164)
at org.ops4j.pax.exam.spi.reactors.EagerSingleStagedReactor.setUp(EagerSingleStagedReactor.java:86)
at org.ops4j.pax.exam.spi.reactors.EagerSingleStagedReactor.beforeClass(EagerSingleStagedReactor.java:136)
at org.ops4j.pax.exam.spi.reactors.ReactorManager.beforeClass(ReactorManager.java:447)
at org.ops4j.pax.exam.junit.impl.ProbeRunner.run(ProbeRunner.java:97)
at org.ops4j.pax.exam.junit.PaxExam.run(PaxExam.java:93)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:86)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:49)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:69)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:105)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
...
Caused by: java.rmi.NotBoundException: a86ba245-b66b-498e-8752-05679dc9041b
at sun.rmi.registry.RegistryImpl.lookup(RegistryImpl.java:166)
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:410)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:268)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$78(TCPTransport.java:683)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$$Lambda$2/1267686416.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:276)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:253)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:379)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at org.ops4j.pax.exam.rbc.client.intern.RemoteBundleContextClientImpl.getRemoteBundleContext(RemoteBundleContextClientImpl.java:242)
... 34 more
我将 Pax-Exam 配置为（使用 debug == false）：
@Configuration
public Option[] config() throws Exception {
final boolean debug = ConfigurationHelper.getBoolean(
"org.hibernate.testing.osgi.paxExam.debug",
Environment.getProperties(),
DEBUG
);
return options(
when( debug ).useOptions( debugConfiguration( "5005", true ) ),
karafDistributionConfiguration()
.frameworkUrl(
maven()
.groupId( "org.apache.karaf" )
.artifactId( "apache-karaf" )
.type( "tar.gz" )
.versionAsInProject()
)
.unpackDirectory( new File( "target/exam" ) )
.useDeployFolder( false ),
configureConsole()
.ignoreLocalConsole()
.ignoreRemoteShell(),
when( debug ).useOptions( keepRuntimeFolder() ),
logLevel( LogLevelOption.LogLevel.INFO ),
// avoiding additional boot features; specifically "enterprise"
editConfigurationFilePut(
"etc/org.apache.karaf.features.cfg",
"featuresBoot",
"standard"
),
features( hibernateKarafFeatureFile(), "hibernate-native", "hibernate-jpa" )
);
}
我玩过上述配置的各种表现形式，但无法正常工作。
输出显示了解决工件的许多问题，例如：
Caused by: shaded.org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.ops4j.pax.exam:pax-exam-features:xml:4.5.0
（不是我明确命名的^^），并且：
Caused by: shaded.org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact com.h2database:h2:jar:1.3.170
和：
Caused by: shaded.org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact log4j:log4j:jar:1.2.17
等等
更重要的是......我从来没有看到这些被解析到本地 Maven 缓存中。Karaf（由 Pax Exam 启动）是否没有远程定位这些 maven 依赖项？我不会说 org.ops4j.pax.exam:pax-exam-features:xml:4.5.0，但 log4j 和 h2 jar 存在，如 Maven Central 中所命名。
任何想法我可能会错过什么？