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java.lang.NoClassDefFoundError: 	at NotificationServiceBean_LocalHomeProxy_68d4144.getSingletonInstance(Unknown Source)	at com.evermind.server.ejb.interceptor.joinpoint.StatelessCreateJoinPointImpl.invoke(StatelessCreateJoinPointImpl.java:24)	at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)	at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)	at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)	at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)	at com.evermind.server.ejb.AbstractEJBHome.OC4J_invokeMethod(AbstractEJBHome.java:723)	at NotificationServiceBean_LocalHomeProxy_68d4144.create(Unknown Source)	at oracle.bpel.services.notification.NotificationUtil.lookupLocalBean(NotificationUtil.java:407)	at oracle.tip.pc.services.notification.NotificationService.sendEmailNotification(NotificationService.java:362)	at oracle.tip.pc.services.notification.NotificationService.sendEmailNotification(NotificationService.java:344)	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:585)	at com.collaxa.cube.ws.wsif.providers.java.WSIFOperation_Java.executeRequestResponseOperation(WSIFOperation_Java.java:1019)	at com.collaxa.cube.ws.WSIFInvocationHandler.invoke(WSIFInvocationHandler.java:476)	at com.collaxa.cube.ws.WSInvocationManager.invoke2(WSInvocationManager.java:436)	at com.collaxa.cube.ws.WSInvocationManager.invoke(WSInvocationManager.java:251)	at com.collaxa.cube.engine.ext.wmp.BPELInvokeWMP.__invoke(BPELInvokeWMP.java:790)	at com.collaxa.cube.engine.ext.wmp.BPELInvokeWMP.__executeStatements(BPELInvokeWMP.java:395)	at com.collaxa.cube.engine.ext.wmp.BPELActivityWMP.perform(BPELActivityWMP.java:195)	at com.collaxa.cube.engine.CubeEngine.performActivity(CubeEngine.java:3715)	at com.collaxa.cube.engine.CubeEngine.handleWorkItem(CubeEngine.java:1655)	at com.collaxa.cube.engine.dispatch.message.instance.PerformMessageHandler.handleLocal(PerformMessageHandler.java:75)	at com.collaxa.cube.engine.dispatch.DispatchHelper.handleLocalMessage(DispatchHelper.java:220)	at com.collaxa.cube.engine.dispatch.DispatchHelper.sendMemory(DispatchHelper.java:317)	at com.collaxa.cube.engine.CubeEngine.endRequest(CubeEngine.java:5710)	at com.collaxa.cube.engine.CubeEngine.createAndInvoke(CubeEngine.java:1085)	at com.collaxa.cube.engine.delivery.DeliveryService.handleInvoke(DeliveryService.java:535)	at com.collaxa.cube.engine.ejb.impl.CubeDeliveryBean.handleInvoke(CubeDeliveryBean.java:342)	at sun.reflect.GeneratedMethodAccessor44.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:585)	at com.evermind.server.ejb.interceptor.joinpoint.EJBJoinPointImpl.invoke(EJBJoinPointImpl.java:35)	at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)	at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)	at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)	at com.evermind.server.ejb.interceptor.system.JAASInterceptor$1.run(JAASInterceptor.java:31)	at java.security.AccessController.doPrivileged(Native Method)	at javax.security.auth.Subject.doAs(Subject.java:396)	at com.evermind.server.ThreadState.runAs(ThreadState.java:648)	at com.evermind.server.ejb.interceptor.system.JAASInterceptor.invoke(JAASInterceptor.java:34)	at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)	at com.evermind.server.ejb.interceptor.system.TxRequiredInterceptor.invoke(TxRequiredInterceptor.java:50)	at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)	at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)	at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)	at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)	at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:87)	at CubeDeliveryBean_LocalProxy_4bin6i8.handleInvoke(Unknown Source)	at com.collaxa.cube.engine.dispatch.message.invoke.InvokeInstanceMessageHandler.handle(InvokeInstanceMessageHandler.java:37)	at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(DispatchHelper.java:142)	at com.collaxa.cube.engine.dispatch.BaseScheduledWorker.process(BaseScheduledWorker.java:70)	at com.collaxa.cube.engine.ejb.impl.WorkerBean.onMessage(WorkerBean.java:86)	at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:585)	at com.evermind.server.ejb.interceptor.joinpoint.EJBJoinPointImpl.invoke(EJBJoinPointImpl.java:35)	at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)	at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)	at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)	at com.evermind.server.ejb.interceptor.system.SetContextActionInterceptor.invoke(SetContextActionInterceptor.java:44)	at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)	at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)	at oracle.j2ee.connector.messageinflow.MessageEndpointImpl.OC4J_invokeMethod(MessageEndpointImpl.java:297)	at WorkerBean_EndPointProxy_4bin6i8.onMessage(Unknown Source)	at oracle.j2ee.ra.jms.generic.WorkConsumer.run(WorkConsumer.java:266)	at oracle.j2ee.connector.work.WorkWrapper.runTargetWork(WorkWrapper.java:242)	at oracle.j2ee.connector.work.WorkWrapper.doWork(WorkWrapper.java:215)	at oracle.j2ee.connector.work.WorkWrapper.run(WorkWrapper.java:190)	at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:814)	at java.lang.Thread.run(Thread.java:595)