using hibernate-2.1.4 + spring-1.1.1 + cglib-full-2.0.2 on Liferay portal.

I get this weird exception:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in file [E:\PrgTools\liferay-tomcat-3.1.0\webapps\nccin\WEB-INF\hibernateSessionContext.xml]: Initialization of bean failed; nested exception is java.lang.ExceptionInInitializerError: null
java.lang.ExceptionInInitializerError
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:768)
at org.springframework.orm.hibernate.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:467)

Caused by: java.lang.ClassCastException
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 net.sf.hibernate.impl.SessionFactoryImpl.<clinit>(SessionFactoryImpl.java:235)

Note the ClassCastException in KeyFactory.

What could be the problem?

Ara.

don't know - possibly classloading or jar versioning issues ?

step in with a debugger....