GRAVE: Exception starting filter HibernateFiltere Struts 2

Boa Tarde Galera !!!

Eu criei um novo projeto no eclipse com o formato Dynamic Web Project e estou tendo algumas dificuldades em configurar os filtros. Acredito que o arquivo web.xml não esteja correto. Eu estou utilizando um modelo que foi apresentado pelo professor da faculdade. A idéia é utilizar jsp, struts 2 e Hibernate.

Abaixo segue log ao iniciar o Tomcat 7.

15/03/2011 12:38:07 org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files (x86)\Java\jdk1.6.0_24\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files (x86)/Java/jre6/bin/client;C:/Program Files (x86)/Java/jre6/bin;C:/Program Files (x86)/Java/jre6/lib/i386;C:\PHP;c:\php\ext;c:\ruby\bin;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Windows Live\Shared;C:\Program Files\TortoiseSVN\bin;c:\windows\system32;C:\Program Files\MySQL\MySQL Server 5.5\bin;C:\Program Files (x86)\Java\jdk1.6.0_24\bin;
15/03/2011 12:38:07 org.apache.tomcat.util.digester.SetPropertiesRule begin
AVISO: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property ‘source’ to ‘org.eclipse.jst.jee.server:WebImovel’ did not find a matching property.
15/03/2011 12:38:07 org.apache.coyote.AbstractProtocolHandler init
INFO: Initializing ProtocolHandler [“http-bio-8080”]
15/03/2011 12:38:07 org.apache.coyote.AbstractProtocolHandler init
INFO: Initializing ProtocolHandler [“ajp-bio-8009”]
15/03/2011 12:38:07 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 425 ms
15/03/2011 12:38:07 org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
15/03/2011 12:38:07 org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.6
15/03/2011 12:38:07 org.apache.catalina.core.StandardContext filterStart
GRAVE: Exception starting filter HibernateFilter
java.lang.NoClassDefFoundError: org/hibernate/StaleObjectStateException
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
at java.lang.Class.getConstructor0(Class.java:2699)
at java.lang.Class.newInstance0(Class.java:326)
at java.lang.Class.newInstance(Class.java:308)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:119)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:252)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:372)
at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:98)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4382)
at org.apache.catalina.core.StandardContext$2.call(StandardContext.java:5040)
at org.apache.catalina.core.StandardContext$2.call(StandardContext.java:5035)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassNotFoundException: org.hibernate.StaleObjectStateException
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1643)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1488)
… 17 more
15/03/2011 12:38:07 org.apache.catalina.core.StandardContext filterStart
GRAVE: Exception starting filter Struts2
java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.FilterDispatcher
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1643)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1488)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:415)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:397)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:252)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:372)
at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:98)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4382)
at org.apache.catalina.core.StandardContext$2.call(StandardContext.java:5040)
at org.apache.catalina.core.StandardContext$2.call(StandardContext.java:5035)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
15/03/2011 12:38:07 org.apache.catalina.core.StandardContext startInternal
GRAVE: Error filterStart
15/03/2011 12:38:07 org.apache.catalina.core.StandardContext startInternal
GRAVE: Context [/WebImovel] startup failed due to previous errors
15/03/2011 12:38:07 org.apache.coyote.AbstractProtocolHandler start
INFO: Starting ProtocolHandler [“http-bio-8080”]
15/03/2011 12:38:07 org.apache.coyote.AbstractProtocolHandler start
INFO: Starting ProtocolHandler [“ajp-bio-8009”]
15/03/2011 12:38:07 org.apache.catalina.startup.Catalina start
INFO: Server startup in 427 ms

grato