We deployed an EAR file on JBoss 4.2.3 which contains multiple WAR files. e.g.: EAR |---WAR1 |---WAR2 |---WAR3 Our problem is: When a class inside WAR3 tries to create an instance of a class included in WAR1 we keep getting a ClassNotFoundException. The same EAR file works without any problems under JBoss 4.0.5. What do we miss here? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4218968#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...