<properties>
<property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.WebSphereExtendedJTATransactionLookup" />
<property name="hibernate.dialect" value="org.hibernate.dialect.DB2390Dialect" />
<property name="hibernate.show_sql" value="true"/>
</properties>

They are the properties defined in my persistence.xml. When I try to run the applcation, I am getting the followign error. Can any one help me in resolving the issue. I am trying to coneect to DB2 data base.



javax.persistence.PersistenceException: org.hibernate.HibernateException: Could not instantiate dialect class
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:737)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:121)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)

[5/11/08 15:24:14:280 IST] 00000030 SystemErr R Caused by: org.hibernate.HibernateException: Could not instantiate dialect class
at org.hibernate.dialect.DialectFactory.buildDialect(DialectFactory.java:84)
at org.hibernate.dialect.DialectFactory.buildDialect(DialectFactory.java:42)
at org.hibernate.cfg.SettingsFactory.determineDialect(SettingsFactory.java:426)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:128)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2009)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1292)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:915)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:730)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:121)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
Caused by: java.lang.ClassCastException: org.hibernate.dialect.DB2390Dialect incompatible with org.hibernate.dialect.Dialect
at org.hibernate.dialect.DialectFactory.buildDialect(DialectFactory.java:78)