Hi,
I upgraded hibernate which comes with JBoss to hibernate 2.1.8. I am getting the following error now.

15:01:47,856 INFO [SettingsFactory] cache provider: net.sf.ehcache.hibernate.Provider
15:01:47,856 INFO [Configuration] instantiating and configuring caches
15:01:47,856 WARN [ServiceController] Problem starting service jboss.jca:service=JAWS_ConverterService
java.lang.AbstractMethodError: net.sf.ehcache.hibernate.Provider.start(Ljava/util/Properties;)V
at net.sf.hibernate.cfg.Configuration.configureCaches(Configuration.java:1133)
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:804)

Thanks,
-AJ