求助！在线等！EJB Weblogic部署出错！

[zcc19881105]

An error occurred during activation of changes, please see the log for details.
Exception preparing module: EJBModule(IntrustEJB.jar) Unable to deploy EJB: D:\bea\user_projects\domains\base_domain\servers\intrustServer\tmp\_WL_user\IntrustEar\17z14k\IntrustEJB.jar from IntrustEJB.jar: [EJB:010229]EJB : Unpostlist .Unable to initialize method info for remote ,home , message listener or webservice endpoint interface. The error is java.lang.NoClassDefFoundError: sun/jdbc/rowset/CachedRowSet at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2427) at java.lang.Class.privateGetPublicMethods(Class.java:2547) at java.lang.Class.getMethods(Class.java:1410) at weblogic.ejb.container.deployer.ClientDrivenBeanInfoImpl.initializeMethodInfos(ClientDrivenBeanInfoImpl.java:459) at weblogic.ejb.container.deployer.ClientDrivenBeanInfoImpl.init(ClientDrivenBeanInfoImpl.java:259) at weblogic.ejb.container.deployer.BeanInfoImpl.createBeanInfoImpl(BeanInfoImpl.java:731) at weblogic.ejb.container.deployer.MBeanDeploymentInfoImpl.initializeBeanInfos(MBeanDeploymentInfoImpl.java:573) at weblogic.ejb.container.deployer.MBeanDeploymentInfoImpl.<init>(MBeanDeploymentInfoImpl.java:254) at weblogic.ejb.container.deployer.EJBDeployer.prepare(EJBDeployer.java:1103) at weblogic.ejb.container.deployer.EJBModule.prepare(EJBModule.java:425) at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:93) at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:387) at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37) at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:58) at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:42) at weblogic.application.internal.BaseDeployment$1.next(BaseDeployment.java:615) at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37) at weblogic.application.internal.BaseDeployment.prepare(BaseDeployment.java:191) at weblogic.application.internal.EarDeployment.prepare(EarDeployment.java:16) at weblogic.application.internal.DeploymentStateChecker.prepare(DeploymentStateChecker.java:155) at weblogic.deploy.internal.targetserver.AppContainerInvoker.prepare(AppContainerInvoker.java:60) at weblogic.deploy.internal.targetserver.operations.ActivateOperation.createAndPrepareContainer(ActivateOperation.java:197) at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doPrepare(ActivateOperation.java:89) at weblogic.deploy.internal.targetserver.operations.AbstractOperation.prepare(AbstractOperation.java:217) at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentPrepare(DeploymentManager.java:723) at weblogic.deploy.internal.targetserver.DeploymentManager.prepareDeploymentList(DeploymentManager.java:1190) at weblogic.deploy.internal.targetserver.DeploymentManager.handlePrepare(DeploymentManager.java:248) at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.prepare(DeploymentServiceDispatcher.java:159) at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doPrepareCallback(DeploymentReceiverCallbackDeliverer.java:157) at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$000(DeploymentReceiverCallbackDeliverer.java:12) at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$1.run(DeploymentReceiverCallbackDeliverer.java:45) at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:516) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201) at weblogic.work.ExecuteThread.run(ExecuteThread.java:173) Caused by: java.lang.ClassNotFoundException: sun.jdbc.rowset.CachedRowSet at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:283) at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:256) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:176) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) ... 35 more .
sun.jdbc.rowset.CachedRowSet
The deployment has been successfully installed.


等待发布时，出现错误，请问是怎么了。。。
小妹是菜鸟级别，请多多指教啦~~~~