User development, A new message was posted in the thread "java.lang.ClassCastException: org.hibernate.ejb.HibernatePersistence": http://community.jboss.org/message/520307#520307 Author : a a Profile : http://community.jboss.org/people/Guestuser31 Message: -------------------------------------------------------------- Hi   Yes I have a persistence.xml file which is as below:     <persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">       <persistence-unit name="test" transaction-type="RESOURCE_LOCAL">         <provider>oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider</provider>           <class>com.talgentra.tallyman.domain.model.admin.ServerConfigImpl</class>         <class>com.talgentra.tallyman.domain.model.admin.JobConfigImpl</class>         <class>com.talgentra.tallyman.domain.model.admin.OperationLogConfigImpl</class>         <class>com.talgentra.tallyman.domain.model.admin.OperationTaskConfigImpl</class>         <class>com.talgentra.tallyman.domain.model.admin.ScheOperationConfigImpl</class>           <properties>             <property name="toplink.logging.level" value="INFO"/>         </properties>     </persistence-unit>   </persistence>     Hope this is what you wanted.   Thanks -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/520307#520307