I have another problem. My webservice is a methode that takes an object of type "Dmex" in the mysql data base (with Hibernate). | public class DmexWs implements IDmexWs { | | SessionFactory sessionFactory = new Configuration().configure ().buildSessionFactory(); | | public String getDmex(int id) throws RemoteException { | CommonManager cm = HibernateEnviron.getCommonManager(); | | Dmex dmex = (Dmex)cm.findOneId(Dmex.class, 792); | | return dmex.getDescription(); | | } | | } | And when I run the client, I have this error: | java.rmi.RemoteException: Call invocation failed with code [Client] because of: JDBC Driver class not found: com.mysql.jdbc.Driver; nested exception is: | Must I put the mysqlConnector jar with my class DmexWs in the .war deployed on the server? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4033697#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...