Hibernate version: 3

I am writing EAR which contains WAR and EJB module. EAR root dir contains all hibernate related libs.
When i call session bean's method from WAR servlet which call SchemaExport - all works fine. But if I am trying to buildSessionFactory i always got this:

javax.ejb.EJBException at com.sun.ejb.containers.BaseContainer.processSystemException(BaseContainer.java:2807) at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:2713) at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:2521) at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:819) at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:137) at $Proxy49.getEntity(Unknown Source) at EJBTest.processRequest(EJBTest.java:46) at EJBTest.doGet(EJBTest.java:62) at javax.servlet.http.HttpServlet.service(HttpServlet.java:747) at javax.servlet.http.HttpServlet.service(HttpServlet.java:860) at sun.reflect.GeneratedMethodAccessor63.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAsPrivileged(Subject.java:517) at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282) at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:257) at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55) at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:263) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:225) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:132) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:185) at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:653) at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:534) at com.sun.enterprise.web.connector.grizzly.ProcessorTask.doTask(ProcessorTask.java:403) at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:55) Caused by: java.lang.NoClassDefFoundError at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1005) at

What wrong?

Can't solve this problem for several days. Sometimes (the first time starting application after deploy) I have this ex:

org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:225) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:132) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:185) at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:653) at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:534) at com.sun.enterprise.web.connector.grizzly.ProcessorTask.doTask(ProcessorTask.java:403) at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:55) Caused by: java.lang.NoClassDefFoundError at net.sf.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:167) at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:215) at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:145) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:117) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104) at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:321) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1005) at net.myuri.AccountServiceBean.getEntity(AccountServiceBean.java:78) 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.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:147) at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:128) ... 34

I have correct manifest in ejb module which contains all hibernate related libs. What else to fix? It's out of my mind...

Somehow I dot't beleve - nobody got this exception before?