I have this configuration in my webapp: The DAO layer: | <!-- Hibernate SessionFactory --> | <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> | <property name="dataSource" ref="dataSource"/> | <property name="configurationClass"> | <value>org.hibernate.cfg.AnnotationConfiguration</value> | </property> | <property name="configLocation" value="classpath:hibernate.cfg.xml"/> | <property name="hibernateProperties"> | <value> | hibernate.dialect=${hibernate.dialect} | hibernate.query.substitutions=true 'Y', false 'N' | </value> | </property> | </bean> | <!-- Transaction manager for a single Hibernate SessionFactory (alternative to JTA) --> | <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> | <property name="sessionFactory" ref="sessionFactory"/> | </bean> | | <bean id="abstractDao" abstract="true"> | <property name="sessionFactory" ref="sessionFactory"/> | </bean> | and then i reference the sessionFactory when it's needed. I use annotations and not hibernate validation, when i run my application in another web server, there are no problems, but in jboss, the next exception allways occurs: | org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [jar:file:/C:/java/jboss-4.0.3SP1/server/default/tmp/deploy/tmp1447mamba-webapp-1.0-M1-SNAPSHOT-exp.war/WEB-INF/lib/mamba-core-1.0-M1-SNAPSHOT.jar!/applicationContext-dao.xml]: Invocation of init method failed; nested exception is java.lang.ClassCastException: org.hibernate.validator.event.ValidateEventListener | Caused by: | java.lang.ClassCastException: org.hibernate.validator.event.ValidateEventListener | at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:783) | what's the reason of this problem? i don't like to use hibernate annotations, i'm using spring modules validation annotations, i think that jboss don't make nothing more than tomcat in this case. Can someone help me? Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4090487#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...