JDK 17下WebSphere Liberty BASE远程EJB调用失败求助

在两个独立VM部署的JavaEE应用间发起远程EJB调用时，主应用发起远程EJB查找后，服务器控制台抛出如下错误堆栈：

[err] Exception in thread "Yoko:ThreadPerRequest:Dispatcher" 
[err] java.lang.NoClassDefFoundError: Could not initialize class org.apache.yoko.orb.OB.SendingContextRuntimes
[err]   at org.apache.yoko.orb.OB.CollocatedServer.send(CollocatedServer.java:231)
[err]   at org.apache.yoko.orb.OB.CollocatedServer.sendReceive(CollocatedServer.java:295)
[err]   at org.apache.yoko.orb.OB.CollocatedClient.sendReceive(CollocatedClient.java:144)
[err]   at org.apache.yoko.orb.OB.Downcall.request(Downcall.java:300)
[err]   at org.apache.yoko.orb.OB.DowncallStub.invoke(DowncallStub.java:615)
[err]   at org.apache.yoko.orb.CORBA.Delegate.invoke(Delegate.java:403)
[err]   at org.apache.yoko.orb.CORBA.Delegate.is_a(Delegate.java:252)
[err]   at org.omg.CORBA.portable.ObjectImpl._is_a(ObjectImpl.java:54)
[err]   at org.omg.CosNaming.NamingContextHelper.narrow(NamingContextHelper.java:68)
[err]   at org.apache.yoko.orb.CosNaming.tnaming2.NamingContextImpl$POAServant.resolveObject(NamingContextImpl.java:291)
[err]   at org.apache.yoko.orb.CosNaming.tnaming2.NamingContextBase.resolveContext(NamingContextBase.java:567)
[err]   at org.apache.yoko.orb.CosNaming.tnaming2.NamingContextBase.resolve(NamingContextBase.java:266)
[err]   at org.omg.CosNaming.NamingContextExtPOA._invoke(NamingContextExtPOA.java:366)
[err]   at org.apache.yoko.orb.OBPortableServer.ServantDispatcher.dispatch(ServantDispatcher.java:189)
[err]   at org.apache.yoko.orb.OBPortableServer.POA_impl._OB_dispatch(POA_impl.java:1245)
[err]   at org.apache.yoko.orb.OB.DispatchRequest_impl.invoke(DispatchRequest_impl.java:56)
[err]   at org.apache.yoko.orb.OB.DispatchThreadPerRequest_impl$Dispatcher.run(DispatchStrategyFactory_impl.java:70)
[err] Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.ExceptionInInitializerError [in thread "Default Executor-thread-19"]
[err]   at org.apache.yoko.rmi.impl.TypeRepository.get(TypeRepository.java:260)
[err]   at org.apache.yoko.rmi.impl.ValueHandlerImpl.<init>(ValueHandlerImpl.java:62)
[err]   at org.apache.yoko.rmi.impl.ValueHandlerImpl.<init>(ValueHandlerImpl.java:52)
[err]   at org.apache.yoko.rmi.impl.ValueHandlerImpl$HandlerHolder.<clinit>(ValueHandlerImpl.java:67)
[err]   at org.apache.yoko.rmi.impl.ValueHandlerImpl.get(ValueHandlerImpl.java:73)
[err]   at org.apache.yoko.rmi.impl.UtilImpl.createValueHandler(UtilImpl.java:460)
[err]   at javax.rmi.CORBA.Util.createValueHandler(Util.java:63)
[err]   at org.apache.yoko.orb.OB.SendingContextRuntimes.<clinit>(SendingContextRuntimes.java:30)
[err]   at org.apache.yoko.orb.OB.CollocatedServer.send(CollocatedServer.java:231)
[err]   at org.apache.yoko.orb.OB.CollocatedServer.sendReceive(CollocatedServer.java:295)
[err]   at org.apache.yoko.orb.OB.CollocatedClient.sendReceive(CollocatedClient.java:144)
[err]   at org.apache.yoko.orb.OB.Downcall.request(Downcall.java:300)
[err]   at org.apache.yoko.orb.OB.DowncallStub.invoke(DowncallStub.java:615)
[err]   at org.apache.yoko.orb.CORBA.Delegate.invoke(Delegate.java:403)
[err]   at org.omg.CORBA.portable.ObjectImpl._invoke(ObjectImpl.java:81)
[err]   at com.ibm.ws.threading.internal.PolicyTaskFutureImpl.run(PolicyTaskFutureImpl.java:762)
[err]   at com.ibm.ws.threading.internal.PolicyExecutorImpl.runTask(PolicyExecutorImpl.java:1172)
[err]   at com.ibm.ws.threading.internal.PolicyExecutorImpl$GlobalPoolTask.run(PolicyExecutorImpl.java:198)
[err]   at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[err]   at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[err]   at java.base/java.lang.Thread.run(Thread.java:833)

注：两个JavaEE应用均部署在JDK 17环境中，远程EJB查找代码如下：

Context ctx = new InitialContext(jndiProps);
Object remoteObj = ctx.lookup("corbaname:iiop:10.0.0.127:2809/NameService#ejb/global/app_server_2/RMS.jar/OMSCoreServicesBean#com.dfn.oms.newgen.core.tx.service.OMSCoreServicesWrapperRemote");
return (OMSCoreServicesWrapperRemote) PortableRemoteObject.narrow(remoteObj, OMSCoreServicesWrapperRemote.class);

• 确保Yoko ORB依赖完整一致：错误根源是org.apache.yoko.orb.OB.SendingContextRuntimes类初始化失败，需检查两个应用的类路径，确认包含完整的Yoko ORB核心依赖包（如yoko-orb-core、yoko-rmi-impl等），且两端依赖版本完全一致，避免缺失或版本冲突。
• 验证Yoko与JDK 17的兼容性：部分旧版Yoko ORB对JDK 17支持不足，需升级到官方标注支持JDK 17的Yoko稳定版本。
• 调整线程上下文类加载器：在发起EJB查找前，显式设置线程上下文类加载器为当前应用的类加载器，避免跨线程类加载异常：

  Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
  

• 检查JNDI配置准确性：确认客户端JNDI属性（如java.naming.factory.initial、java.naming.provider.url）配置正确，确保能正常连接到远程服务器的Naming Service，避免因连接问题触发内部类加载错误。
• 排除CORBA实现冲突：若应用中存在其他CORBA/ORB实现（如Sun ORB、JacORB），需排除这些冲突依赖，确保仅使用Yoko ORB作为CORBA提供者，避免不同实现的类相互干扰。

内容的提问来源于stack exchange，提问作者Rangana Jayawardhena