javax.ejb.CreateException：無法創建無狀態的EJB

Question

我正在使用netbean 6.7.1 Glassfish v2.1 ... 我試圖創建消息驅動的bean。

應用程序A（使用會話bean，創建映射消息） - >應用程序B（消息驅動的bean位於此處）。

@Stateless 
public class AManagerBean implements AManagerRemote { 
.... 
} 

@Remote 
public interface AManagerRemote { 
... 
} 

在主類A的，

@EJB 
public static AManagerRemote AManager; 
AManager.requestFineAmt(memberID); 

在requestFineAmt方法，它包括所有那些隊列連接的東西。

當我嘗試運行它。我收到錯誤，指出無法創建無狀態EJB。爲什麼？？？

WARNING: ACC003: Application threw an exception. 
javax.ejb.EJBException: nested exception is: java.rmi.ServerException: RemoteException  occurred in server thread; nested exception is: 

java.rmi.RemoteException: nested exception is: javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB; nested exception is: 

javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not  create stateless EJB 
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
java.rmi.RemoteException: nested exception is: javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB; nested exception is: 
    javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB 
    at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.mapSystemException(Util.java:243) 
    at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:205) 
    at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:152) 
    at com.sun.corba.ee.impl.presentation.rmi.bcel.BCELStubBase.invoke(BCELStubBase.java:225) 
    at ejb.__AManagerRemote_Remote_DynamicStub.requestFineAmt(ejb/__AManagerRemote_Remote_DynamicStub.java) 
    at ejb._AManagerRemote_Wrapper.requestFineAmt(ejb/_AManagerRemote_Wrapper.java) 
    at lps.Main.main(Main.java:23) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at com.sun.enterprise.util.Utility.invokeApplicationMain(Utility.java:266) 
    at com.sun.enterprise.appclient.MainWithModuleSupport.<init>(MainWithModuleSupport.java:450) 
    at com.sun.enterprise.appclient.MainWithModuleSupport.<init>(MainWithModuleSupport.java:260) 
    at com.sun.enterprise.appclient.Main.main(Main.java:200) 


Caused by: java.rmi.RemoteException: nested exception is: javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB; nested exception is: 

javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB 
    at com.sun.enterprise.iiop.POAProtocolMgr.mapException(POAProtocolMgr.java:251) 
    at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1420) 
    at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1325) 
    at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:210) 
    at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:117) 
    at $Proxy110.requestFineAmt(Unknown Source) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:154) 
    at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:687) 
    at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:227) 
    at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1846) 
    at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1706) 
    at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:1088) 
    at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:223) 
    at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:806) 
    at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.dispatch(CorbaMessageMediatorImpl.java:563) 
    at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.doWork(CorbaMessageMediatorImpl.java:2567) 
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:555) 

Caused by: javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB 
    at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:785) 
    at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:199) 
    at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:489) 
    at com.sun.ejb.containers.BaseContainer.getContext(BaseContainer.java:1709) 
    at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:1238) 
    at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:202) 
    ... 17 more 


javax.ejb.EJBException: nested exception is: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
    java.rmi.RemoteException: nested exception is: javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB; nested exception is: 
javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB 
    at ejb._LPSManagerRemote_Wrapper.requestFineAmt(ejb/_LPSManagerRemote_Wrapper.java) 
    at lps.Main.main(Main.java:23) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at com.sun.enterprise.util.Utility.invokeApplicationMain(Utility.java:266) 
    at com.sun.enterprise.appclient.MainWithModuleSupport.<init>(MainWithModuleSupport.java:450) 
    at com.sun.enterprise.appclient.MainWithModuleSupport.<init>(MainWithModuleSupport.java:260) 
    at com.sun.enterprise.appclient.Main.main(Main.java:200) 

Exception in thread "main" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException 
    at com.sun.enterprise.appclient.MainWithModuleSupport.<init>(MainWithModuleSupport.java:462) 
    at com.sun.enterprise.appclient.MainWithModuleSupport.<init>(MainWithModuleSupport.java:260) 
    at com.sun.enterprise.appclient.Main.main(Main.java:200) 


Caused by: java.lang.reflect.InvocationTargetException 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at com.sun.enterprise.util.Utility.invokeApplicationMain(Utility.java:266) 
    at com.sun.enterprise.appclient.MainWithModuleSupport.<init>(MainWithModuleSupport.java:450) 
    ... 2 more 


Caused by: javax.ejb.EJBException: nested exception is: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
    java.rmi.RemoteException: nested exception is: javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB; nested exception is: 
    javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB 
    at ejb._AManagerRemote_Wrapper.requestFineAmt(ejb/_AManagerRemote_Wrapper.java) 
    at lps.Main.main(Main.java:23) 
    ... 8 more 

Java結果：1

Answer 1

確保您的EJB類，所有的類使用有實現Serializable接口。

相關：When do I have to make entities serializable when using EJB3?