Spring, Hibernate issue in simple tutorial application: CursorableLinkedList exception

I am trying to use Spring for dependency injection in a very simple tutorial application, and I keep running into this "CursorableLinkedList" error.  The stack trace from the console follows.

The explanation from our instructor was something like "If you see the CursorableLinkedList error, you're outta luck."

Thanks in advance for any help you might be able to provide.  Please let me know what additional information I can provide (config file contents, etc.).

Best,
Phil Hamlin / peh803

[1/18/07 9:46:11:370 EST] 7c4b8662 WebGroup      E SRVE0026E: [Servlet Error]-[Error creating bean with name 'employeeService' defined in class path resource [properties/applicationContext.xml]: Can't resolve reference to bean 'employeeDao' while setting property 'empDao'&#59; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'employeeDao' defined in class path resource [properties/applicationContext.xml]: Can't resolve reference to bean 'sessionFactory' while setting property 'sessionFactory'&#59; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [properties/applicationContext.xml]: Initialization of bean failed&#59; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/collections/CursorableLinkedList]: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'employeeService' defined in class path resource [properties/applicationContext.xml]: Can't resolve reference to bean 'employeeDao' while setting property 'empDao'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'employeeDao' defined in class path resource [properties/applicationContext.xml]: Can't resolve reference to bean 'sessionFactory' while setting property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [properties/applicationContext.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/collections/CursorableLinkedList
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'employeeDao' defined in class path resource [properties/applicationContext.xml]: Can't resolve reference to bean 'sessionFactory' while setting property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [properties/applicationContext.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/collections/CursorableLinkedList
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [properties/applicationContext.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/collections/CursorableLinkedList
java.lang.NoClassDefFoundError: org/apache/commons/collections/CursorableLinkedList
      at org.apache.commons.pool.impl.GenericObjectPool.<init>(GenericObjectPool.java:392)
      at org.apache.commons.pool.impl.GenericObjectPool.<init>(GenericObjectPool.java:258)
      at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:795)
      at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540)
      at org.springframework.orm.hibernate.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:76)
      at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:73)
      at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1155)
      at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:789)
      at org.springframework.orm.hibernate.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:543)
      at org.springframework.orm.hibernate.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:477)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1058)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:363)
      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.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:176)
      at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:105)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1012)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:823)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:345)
      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.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:176)
      at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:105)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1012)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:823)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:345)
      at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)
      at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)
      at com.nationwide.valuedistribution.action.ManageEmployeeAction.listEmployees(ManageEmployeeAction.java:52)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:85)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:58)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
      at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
      at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
      at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:216)
      at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
      at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
      at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
      at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
      at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
      at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
      at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
      at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
      at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
      at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
      at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
      at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:1019)
      at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:592)
      at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:204)
      at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:125)
      at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:286)
      at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
      at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
      at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
      at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
      at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:615)
      at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:439)
      at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:912)
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