I have created web project in Eclipse. I am using Jboss server.After deploying my project to Jboss I get the following error when i start my server .I am using Hibernate 3 jars.

13:43:21,839 ERROR [ContextLoader] Context initialization failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'CustomerDAO' defined in ServletContext resource [/WEB-INF/hello.xml]: Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: net/sf/hibernate/Session

java.lang.NoClassDefFoundError: net/sf/hibernate/Session

at java.lang.Class.getDeclaredMethods0(Native Method)

at java.lang.Class.privateGetDeclaredMethods(Class.java:2365)

at java.lang.Class.getDeclaredMethods(Class.java:1763)

at java.beans.Introspector$1.run(Introspector.java:1265)

at java.security.AccessController.doPrivileged(Native Method)

at java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:1263)

at java.beans.Introspector.getTargetMethodInfo(Introspector.java:1129)

at java.beans.Introspector.getBeanInfo(Introspector.java:387)

at java.beans.Introspector.getBeanInfo(Introspector.java:159)

at java.beans.Introspector.getBeanInfo(Introspector.java:220)

at java.beans.Introspector.<init>(Introspector.java:368)

at java.beans.Introspector.getBeanInfo(Introspector.java:159)

at org.springframework.beans.CachedIntrospectionResults.<init>(CachedIntrospectionResults.java:143)

at org.springframework.beans.CachedIntrospectionResults.forClass(CachedIntrospectionResults.java:84)

at org.springframework.beans.BeanWrapperImpl.setIntrospectionClass(BeanWrapperImpl.java:365)

at org.springframework.beans.BeanWrapperImpl.setWrappedInstance(BeanWrapperImpl.java:323)

at org.springframework.beans.BeanWrapperImpl.setWrappedInstance(BeanWrapperImpl.java:305)

at org.springframework.beans.BeanWrapperImpl.<init>(BeanWrapperImpl.java:187)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:454)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:333)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:275)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:318)

at org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:134)

at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:230)

at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:156)

at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:48)

at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3669)

at org.apache.catalina.core.StandardContext.start(StandardContext.java:4104)

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)

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 org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)

at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:150)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)

at org.apache.catalina.core.StandardContext.init(StandardContext.java:5005)

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 org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)

at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:150)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)

at org.jboss.web.tomcat.tc5.TomcatDeployer.performDeployInternal(TomcatDeployer.java:274)

at org.jboss.web.tomcat.tc5.TomcatDeployer.performDeploy(TomcatDeployer.java:91)

at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:357)

at org.jboss.web.WebModule.startModule(WebModule.java:68)

at org.jboss.web.WebModule.startService(WebModule.java:46)

at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:272)

at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:222)

at sun.reflect.GeneratedMethodAccessor58.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)

at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:897)

at $Proxy0.start(Unknown Source)

at org.jboss.system.ServiceController.start(ServiceController.java:418)

at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)

at $Proxy36.start(Unknown Source)

at org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:394)

at org.jboss.deployment.MainDeployer.start(MainDeployer.java:964)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:775)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738)

at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)

at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:121)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)

at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:127)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)

at $Proxy8.deploy(Unknown Source)

at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:325)

at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:501)

at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:204)

at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:277)

at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:272)

at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:222)

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 org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)

at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:897)

at $Proxy0.start(Unknown Source)

at org.jboss.system.ServiceController.start(ServiceController.java:418)

at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)

at $Proxy4.start(Unknown Source)

at org.jboss.deployment.SARDeployer.start(SARDeployer.java:273)

at org.jboss.deployment.MainDeployer.start(MainDeployer.java:964)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:775)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:722)

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 org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)

at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:121)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)

at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:127)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)

at $Proxy5.deploy(Unknown Source)

at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:434)

at org.jboss.system.server.ServerImpl.start(ServerImpl.java:315)

at org.jboss.Main.boot(Main.java:195)

at org.jboss.Main$1.run(Main.java:463)

at java.lang.Thread.run(Thread.java:595)



Can anyone tell me why this error is coming

If you are using Hibernate 3, you shouldnt be having class referenced as
net.sf.hibernate.*, they should be
org.hibernate.*
Please check your classes to make sure that you dont point classes that were in Hibernate 2.x

Hi,

I think your problem comes from Spring Configuration.

For example, If you uses a session factory, the package is
and not

More info: http://www.springframework.org/docs/api ... mmary.html

Bye !!