Hi All, I am using JPA/Hibernate in Weblogic 10. While running the application, I am getting the following exception. Can someone help on this. Exception caught is : java.lang.IllegalArgumentException : org.hibernate.QueryException : ClassNotFoundException : org.hibernate.hql.ast.HqlToken [select p from ParentProfileEntity p where p.email=?1] I am using JBoss's seam framework . Copy of the persistence.xml is given below. <persistence-unit name="userDatabase" transaction-type="JTA"> org.hibernate.ejb.HibernatePersistence <jta-data-source>PNDataSource</jta-data-source> </persistence-unit> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4098247#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...