i am newbee at hibernate
i tried to execute a program using hibernate
the code to get an hibernate session is like this

SessionFactory factory =
new Configuration().configure().buildSessionFactory();
Session session = factory.openSession();
session.beginTransaction();
Message m1 = new Message(
"Hibernated a message on " + new Date());
session.save(m1);
session.getTransaction().commit();
session.close();

the exception is given below




Exception in thread "main" java.lang.NoClassDefFoundError: net/sf/cglib/proxy/Callbac
at org.hibernate.bytecode.cglib.BytecodeProviderImpl.getProxyFactoryFactory(B
at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactoryInternal(Po
at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntity
at org.hibernate.tuple.entity.AbstractEntityTuplizer.<init>(AbstractEntityTup
at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.ja
at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.<init>(Entity
at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:302
at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEnti
at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTab
at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFac
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:226)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:130
at sample.PopulateMessages.main(PopulateMessages.java:9)
Caused by: java.lang.ClassNotFoundException: net.sf.cglib.proxy.CallbackFilter
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
... 13 more


i have kept the cglib jar in to my classpath but still the problem persists

please help